TMS320C6745/6747 DSP芯片功能与应用详解

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本文档主要介绍了TI公司的TMS320C6745和TMS320C6747两款高性能数字信号处理器(DSP)芯片。这些 DSP产品是专为复杂的信号处理应用设计的，它们结合了固定点和浮点运算能力，具备先进的特性，旨在提供高效的计算性能。首先，TMS320C6745/6747 DSP芯片具有以下关键特性： 1. **高速处理能力**：它们配备了375/456 MHz的C674x Very Long Instruction Word (VLIW) DSP内核，能实现超高速的数据处理，适合实时和并发任务。 2. **高效数据传输**：配备两个先进的直接内存访问(EDMA3)控制器，支持32个独立DMA通道，以及8个快速DMA通道，极大地提高了数据传输的效率。此外，可编程的传输突发大小提供了灵活性。 3. **内存管理和接口**：C6747型号拥有128KB共享内存，支持非对齐的加载存储器架构，同时配备两个外部内存接口，便于与外部设备通信。此外，它还包含三个配置可选的16550类型的UART接口和六个32/40位算术逻辑单元(ALUs)，用于通用计算任务。 4. **高级通信模块**：带有两个串行外围接口(SPI)和三个16550类型的UART，支持多种通信标准，如多媒体卡(MMC)和Secure Digital(SD)接口，满足多协议数据交换需求。 5. **浮点和整数运算**：支持32位和64位的单精度(IEEE单精度)以及双精度(IEEE双精度)浮点运算，以及32位整数运算，能够处理广泛的数值计算任务。 6. **附加功能**：在C6747型号上还特别配备了液晶控制器(LCD Controller)，这使得它适用于需要图形输出的应用场景。为了方便开发者评估和利用这些功能，文档还提到了检查样例的选项，用户可以通过www.ti.com获取相关的开发工具和示例代码。 TMS320C6745和TMS320C6747 DSP芯片凭借其强大的计算能力、高速接口和丰富的功能，广泛应用于通信、图像处理、音频处理和工业自动化等领域，是高性能信号处理系统的核心组件。

ADVANCEINFORMATION

TMS320C6745,TMS320C6747

SPRS377D–SEPTEMBER 2008–REVISED AUGUST 2010

www.ti.com

Table 3-3. C674x L1/L2 Memory Protection Registers (continued)

BYTE ADDRESS ACRONYM REGISTER DESCRIPTION

L2 memory protection page attribute register 1

0x0184 A204 L2MPPA1

(controls memory address 0x0080 2000 - 0x0080 3FFF)

L2 memory protection page attribute register 2

0x0184 A208 L2MPPA2

(controls memory address 0x0080 4000 - 0x0080 5FFF)

L2 memory protection page attribute register 3

0x0184 A20C L2MPPA3

(controls memory address 0x0080 6000 - 0x0080 7FFF)

L2 memory protection page attribute register 4

0x0184 A210 L2MPPA4

(controls memory address 0x0080 8000 - 0x0080 9FFF)

L2 memory protection page attribute register 5

0x0184 A214 L2MPPA5

(controls memory address 0x0080 A000 - 0x0080 BFFF)

L2 memory protection page attribute register 6

0x0184 A218 L2MPPA6

(controls memory address 0x0080 C000 - 0x0080 DFFF)

L2 memory protection page attribute register 7

0x0184 A21C L2MPPA7

(controls memory address 0x0080 E000 - 0x0080 FFFF)

L2 memory protection page attribute register 8

0x0184 A220 L2MPPA8

(controls memory address 0x0081 0000 - 0x0081 1FFF)

L2 memory protection page attribute register 9

0x0184 A224 L2MPPA9

(controls memory address 0x0081 2000 - 0x0081 3FFF)

L2 memory protection page attribute register 10

0x0184 A228 L2MPPA10

(controls memory address 0x0081 4000 - 0x0081 5FFF)

L2 memory protection page attribute register 11

0x0184 A22C L2MPPA11

(controls memory address 0x0081 6000 - 0x0081 7FFF)

L2 memory protection page attribute register 12

0x0184 A230 L2MPPA12

(controls memory address 0x0081 8000 - 0x0081 9FFF)

L2 memory protection page attribute register 13

0x0184 A234 L2MPPA13

(controls memory address 0x0081 A000 - 0x0081 BFFF)

L2 memory protection page attribute register 14

0x0184 A238 L2MPPA14

(controls memory address 0x0081 C000 - 0x0081 DFFF)

L2 memory protection page attribute register 15

0x0184 A23C L2MPPA15

(controls memory address 0x0081 E000 - 0x0081 FFFF)

L2 memory protection page attribute register 16

0x0184 A240 L2MPPA16

(controls memory address 0x0082 0000 - 0x0082 1FFF)

L2 memory protection page attribute register 17

0x0184 A244 L2MPPA17

(controls memory address 0x0082 2000 - 0x0082 3FFF)

L2 memory protection page attribute register 18

0x0184 A248 L2MPPA18

(controls memory address 0x0082 4000 - 0x0082 5FFF)

L2 memory protection page attribute register 19

0x0184 A24C L2MPPA19

(controls memory address 0x0082 6000 - 0x0082 7FFF)

L2 memory protection page attribute register 20

0x0184 A250 L2MPPA20

(controls memory address 0x0082 8000 - 0x0082 9FFF)

L2 memory protection page attribute register 21

0x0184 A254 L2MPPA21

(controls memory address 0x0082 A000 - 0x0082 BFFF)

L2 memory protection page attribute register 22

0x0184 A258 L2MPPA22

(controls memory address 0x0082 C000 - 0x0082 DFFF)

L2 memory protection page attribute register 23

0x0184 A25C L2MPPA23

(controls memory address 0x0082 E000 - 0x0082 FFFF)

L2 memory protection page attribute register 24

0x0184 A260 L2MPPA24

(controls memory address 0x0083 0000 - 0x0083 1FFF)

L2 memory protection page attribute register 25

0x0184 A264 L2MPPA25

(controls memory address 0x0083 2000 - 0x0083 3FFF)

L2 memory protection page attribute register 26

0x0184 A268 L2MPPA26

(controls memory address 0x0083 4000 - 0x0083 5FFF)

L2 memory protection page attribute register 27

0x0184 A26C L2MPPA27

(controls memory address 0x0083 6000 - 0x0083 7FFF)

L2 memory protection page attribute register 28

0x0184 A270 L2MPPA28

(controls memory address 0x0083 8000 - 0x0083 9FFF)

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ADVANCEINFORMATION

TMS320C6745,TMS320C6747

www.ti.com

SPRS377D–SEPTEMBER 2008–REVISED AUGUST 2010

Table 3-3. C674x L1/L2 Memory Protection Registers (continued)

BYTE ADDRESS ACRONYM REGISTER DESCRIPTION

L2 memory protection page attribute register 29

0x0184 A274 L2MPPA29

(controls memory address 0x0083 A000 - 0x0083 BFFF)

L2 memory protection page attribute register 30

0x0184 A278 L2MPPA30

(controls memory address 0x0083 C000 - 0x0083 DFFF)

L2 memory protection page attribute register 31

0x0184 A27C L2MPPA31

(controls memory address 0x0083 E000 - 0x0083 FFFF)

L2 memory protection page attribute register 32

0x0184 A280 L2MPPA32

(controls memory address 0x0070 0000 - 0x0070 7FFF)

L2 memory protection page attribute register 33

0x0184 A284 L2MPPA33

(controls memory address 0x0070 8000 - 0x0070 FFFF)

L2 memory protection page attribute register 34

0x0184 A288 L2MPPA34

(controls memory address 0x0071 0000 - 0x0071 7FFF)

L2 memory protection page attribute register 35

0x0184 A28C L2MPPA35

(controls memory address 0x0071 8000 - 0x0071 FFFF)

L2 memory protection page attribute register 36

0x0184 A290 L2MPPA36

(controls memory address 0x0072 0000 - 0x0072 7FFF)

L2 memory protection page attribute register 37

0x0184 A294 L2MPPA37

(controls memory address 0x0072 8000 - 0x0072 FFFF)

L2 memory protection page attribute register 38

0x0184 A298 L2MPPA38

(controls memory address 0x0073 0000 - 0x0073 7FFF)

L2 memory protection page attribute register 39

0x0184 A29C L2MPPA39

(controls memory address 0x0073 8000 - 0x0073 FFFF)

L2 memory protection page attribute register 40

0x0184 A2A0 L2MPPA40

(controls memory address 0x0074 0000 - 0x0074 7FFF)

L2 memory protection page attribute register 41

0x0184 A2A4 L2MPPA41

(controls memory address 0x0074 8000 - 0x0074 FFFF)

L2 memory protection page attribute register 42

0x0184 A2A8 L2MPPA42

(controls memory address 0x0075 0000 - 0x0075 7FFF)

L2 memory protection page attribute register 43

0x0184 A2AC L2MPPA43

(controls memory address 0x0075 8000 - 0x0075 FFFF)

L2 memory protection page attribute register 44

0x0184 A2B0 L2MPPA44

(controls memory address 0x0076 0000 - 0x0076 7FFF)

L2 memory protection page attribute register 45

0x0184 A2B4 L2MPPA45

(controls memory address 0x0076 8000 - 0x0076 FFFF)

L2 memory protection page attribute register 46

0x0184 A2B8 L2MPPA46

(controls memory address 0x0077 0000 - 0x0077 7FFF)

L2 memory protection page attribute register 47

0x0184 A2BC L2MPPA47

(controls memory address 0x0077 8000 - 0x0077 FFFF)

L2 memory protection page attribute register 48

0x0184 A2C0 L2MPPA48

(controls memory address 0x0078 0000 - 0x0078 7FFF)

L2 memory protection page attribute register 49

0x0184 A2C4 L2MPPA49

(controls memory address 0x0078 8000 - 0x0078 FFFF)

L2 memory protection page attribute register 50

0x0184 A2C8 L2MPPA50

(controls memory address 0x0079 0000 - 0x0079 7FFF)

L2 memory protection page attribute register 51

0x0184 A2CC L2MPPA51

(controls memory address 0x0079 8000 - 0x0079 FFFF)

L2 memory protection page attribute register 52

0x0184 A2D0 L2MPPA52

(controls memory address 0x007A 0000 - 0x007A 7FFF)

L2 memory protection page attribute register 53

0x0184 A2D4 L2MPPA53

(controls memory address 0x007A 8000 - 0x007A FFFF)

L2 memory protection page attribute register 54

0x0184 A2D8 L2MPPA54

(controls memory address 0x007B 0000 - 0x007B 7FFF)

L2 memory protection page attribute register 55

0x0184 A2DC L2MPPA55

(controls memory address 0x007B 8000 - 0x007B FFFF)

L2 memory protection page attribute register 56

0x0184 A2E0 L2MPPA56

(controls memory address 0x007C 0000 - 0x007C 7FFF)

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ADVANCEINFORMATION

TMS320C6745,TMS320C6747

SPRS377D–SEPTEMBER 2008–REVISED AUGUST 2010

www.ti.com

Table 3-3. C674x L1/L2 Memory Protection Registers (continued)

BYTE ADDRESS ACRONYM REGISTER DESCRIPTION

L2 memory protection page attribute register 57

0x0184 A2E4 L2MPPA57

(controls memory address 0x007C 8000 - 0x007C FFFF)

L2 memory protection page attribute register 58

0x0184 A2E8 L2MPPA58

(controls memory address 0x007D 0000 - 0x007D 7FFF)

L2 memory protection page attribute register 59

0x0184 A2EC L2MPPA59

(controls memory address 0x007D 8000 - 0x007D FFFF)

L2 memory protection page attribute register 60

0x0184 A2F0 L2MPPA60

(controls memory address 0x007E 0000 - 0x007E 7FFF)

L2 memory protection page attribute register 61

0x0184 A2F4 L2MPPA61

(controls memory address 0x007E 8000 - 0x007E FFFF)

L2 memory protection page attribute register 62

0x0184 A2F8 L2MPPA62

(controls memory address 0x007F 0000 - 0x007F 7FFF)

L2 memory protection page attribute register 63

0x0184 A2FC L2MPPA63

(controls memory address 0x007F 8000 - 0x007F FFFF)

0x0184 A300 - 0x0184 A3FF - Reserved

0x0184 A400 L1PMPFAR L1P memory protection fault address register

0x0184 A404 L1PMPFSR L1P memory protection fault status register

0x0184 A408 L1PMPFCR L1P memory protection fault command register

0x0184 A40C - 0x0184 A4FF - Reserved

0x0184 A500 L1PMPLK0 L1P memory protection lock key bits [31:0]

0x0184 A504 L1PMPLK1 L1P memory protection lock key bits [63:32]

0x0184 A508 L1PMPLK2 L1P memory protection lock key bits [95:64]

0x0184 A50C L1PMPLK3 L1P memory protection lock key bits [127:96]

0x0184 A510 L1PMPLKCMD L1P memory protection lock key command register

0x0184 A514 L1PMPLKSTAT L1P memory protection lock key status register

0x0184 A518 - 0x0184 A5FF - Reserved

0x0184 A600 - 0x0184 A63F - Reserved

(1)

L1P memory protection page attribute register 16

0x0184 A640 L1PMPPA16

(controls memory address 0x00E0 0000 - 0x00E0 07FF)

L1P memory protection page attribute register 17

0x0184 A644 L1PMPPA17

(controls memory address 0x00E0 0800 - 0x00E0 0FFF)

L1P memory protection page attribute register 18

0x0184 A648 L1PMPPA18

(controls memory address 0x00E0 1000 - 0x00E0 17FF)

L1P memory protection page attribute register 19

0x0184 A64C L1PMPPA19

(controls memory address 0x00E0 1800 - 0x00E0 1FFF)

L1P memory protection page attribute register 20

0x0184 A650 L1PMPPA20

(controls memory address 0x00E0 2000 - 0x00E0 27FF)

L1P memory protection page attribute register 21

0x0184 A654 L1PMPPA21

(controls memory address 0x00E0 2800 - 0x00E0 2FFF)

L1P memory protection page attribute register 22

0x0184 A658 L1PMPPA22

(controls memory address 0x00E0 3000 - 0x00E0 37FF)

L1P memory protection page attribute register 23

0x0184 A65C L1PMPPA23

(controls memory address 0x00E0 3800 - 0x00E0 3FFF)

L1P memory protection page attribute register 24

0x0184 A660 L1PMPPA24

(controls memory address 0x00E0 4000 - 0x00E0 47FF)

L1P memory protection page attribute register 25

0x0184 A664 L1PMPPA25

(controls memory address 0x00E0 4800 - 0x00E0 4FFF)

L1P memory protection page attribute register 26

0x0184 A668 L1PMPPA26

(controls memory address 0x00E0 5000 - 0x00E0 57FF)

L1P memory protection page attribute register 27

0x0184 A66C L1PMPPA27

(controls memory address 0x00E0 5800 - 0x00E0 5FFF)

(1) These addresses correspond to the L1P memory protection page attribute registers 0-15 (L1PMPPA0-L1PMPPA15) of the C674x

megamaodule. These registers are not supported for this device.

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Product Folder Link(s): TMS320C6745,TMS320C6747

ADVANCEINFORMATION

TMS320C6745,TMS320C6747

www.ti.com

SPRS377D–SEPTEMBER 2008–REVISED AUGUST 2010

Table 3-3. C674x L1/L2 Memory Protection Registers (continued)

BYTE ADDRESS ACRONYM REGISTER DESCRIPTION

L1P memory protection page attribute register 28

0x0184 A670 L1PMPPA28

(controls memory address 0x00E0 6000 - 0x00E0 67FF)

L1P memory protection page attribute register 29

0x0184 A674 L1PMPPA29

(controls memory address 0x00E0 6800 - 0x00E0 6FFF)

L1P memory protection page attribute register 30

0x0184 A678 L1PMPPA30

(controls memory address 0x00E0 7000 - 0x00E0 77FF)

L1P memory protection page attribute register 31

0x0184 A67C L1PMPPA31

(controls memory address 0x00E0 7800 - 0x00E0 7FFF)

0x0184 A67F – 0x0184 ABFF - Reserved

0x0184 AC00 L1DMPFAR L1D memory protection fault address register

0x0184 AC04 L1DMPFSR L1D memory protection fault status register

0x0184 AC08 L1DMPFCR L1D memory protection fault command register

0x0184 AC0C - 0x0184 ACFF - Reserved

0x0184 AD00 L1DMPLK0 L1D memory protection lock key bits [31:0]

0x0184 AD04 L1DMPLK1 L1D memory protection lock key bits [63:32]

0x0184 AD08 L1DMPLK2 L1D memory protection lock key bits [95:64]

0x0184 AD0C L1DMPLK3 L1D memory protection lock key bits [127:96]

0x0184 AD10 L1DMPLKCMD L1D memory protection lock key command register

0x0184 AD14 L1DMPLKSTAT L1D memory protection lock key status register

0x0184 AD18 - 0x0184 ADFF - Reserved

0x0184 AE00 - 0x0184 AE3F - Reserved

(2)

L1D memory protection page attribute register 16

0x0184 AE40 L1DMPPA16

(controls memory address 0x00F0 0000 - 0x00F0 07FF)

L1D memory protection page attribute register 17

0x0184 AE44 L1DMPPA17

(controls memory address 0x00F0 0800 - 0x00F0 0FFF)

L1D memory protection page attribute register 18

0x0184 AE48 L1DMPPA18

(controls memory address 0x00F0 1000 - 0x00F0 17FF)

L1D memory protection page attribute register 19

0x0184 AE4C L1DMPPA19

(controls memory address 0x00F0 1800 - 0x00F0 1FFF)

L1D memory protection page attribute register 20

0x0184 AE50 L1DMPPA20

(controls memory address 0x00F0 2000 - 0x00F0 27FF)

L1D memory protection page attribute register 21

0x0184 AE54 L1DMPPA21

(controls memory address 0x00F0 2800 - 0x00F0 2FFF)

L1D memory protection page attribute register 22

0x0184 AE58 L1DMPPA22

(controls memory address 0x00F0 3000 - 0x00F0 37FF)

L1D memory protection page attribute register 23

0x0184 AE5C L1DMPPA23

(controls memory address 0x00F0 3800 - 0x00F0 3FFF)

L1D memory protection page attribute register 24

0x0184 AE60 L1DMPPA24

(controls memory address 0x00F0 4000 - 0x00F0 47FF)

L1D memory protection page attribute register 25

0x0184 AE64 L1DMPPA25

(controls memory address 0x00F0 4800 - 0x00F0 4FFF)

L1D memory protection page attribute register 26

0x0184 AE68 L1DMPPA26

(controls memory address 0x00F0 5000 - 0x00F0 57FF)

L1D memory protection page attribute register 27

0x0184 AE6C L1DMPPA27

(controls memory address 0x00F0 5800 - 0x00F0 5FFF)

L1D memory protection page attribute register 28

0x0184 AE70 L1DMPPA28

(controls memory address 0x00F0 6000 - 0x00F0 67FF)

L1D memory protection page attribute register 29

0x0184 AE74 L1DMPPA29

(controls memory address 0x00F0 6800 - 0x00F0 6FFF)

L1D memory protection page attribute register 30

0x0184 AE78 L1DMPPA30

(controls memory address 0x00F0 7000 - 0x00F0 77FF)

(2) These addresses correspond to the L1D memory protection page attribute registers 0-15 (L1DMPPA0-L1DMPPA15) of the C674x

megamaodule. These registers are not supported for this device.

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