LPC17xx系列微控制器：ARM Cortex-M3技术详解

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“LPC17xx系列微控制器的英文数据手册，适用于嵌入式应用，具有高集成度和低功耗特性，主要介绍基于ARMCortex-M3内核的芯片。” LPC17xx系列是恩智浦（NXP）推出的一系列微控制器，专门针对嵌入式应用设计。这些微控制器的核心是ARMCortex-M3，这是一个新一代的处理器核心，提供了一系列系统增强功能，如增强的调试特性以及更高级别的支持块集成。Cortex-M3内核采用3级流水线结构，并且拥有哈佛架构，具有独立的本地指令和数据总线，以及第三条总线用于外围设备。 LPC1769、LPC1768、LPC1767、LPC1766、LPC1765、LPC1764和LPC1763这几种型号的工作频率有所不同，最高可达100MHz，而LPC1769的工作频率可高达120MHz。Cortex-M3内核还包括一个内部预取单元，支持推测性分支，提高了处理器的执行效率。在周边外设方面，LPC17xx系列非常丰富，包括但不限于： 1. **内存**：最大512KB的闪存（Flash Memory）和最大64KB的数据内存。 2. **网络通信**：集成以太网MAC，支持USB Device/Host/OTG接口。 3. **数据传输**：8通道通用目的DMA（Direct Memory Access）控制器，使得数据传输更高效。 4. **串行通信**：包括4个UART（通用异步收发传输器），2个CAN（控制器局域网）通道，2个SSP（同步串行端口）控制器，以及SPI（串行外围接口）。 5. **I/O接口**：3个I2C总线接口，2输入+2输出的I2S总线接口，提供了灵活的音频接口选项。 6. **模拟功能**：8通道12位ADC（模数转换器）和10位DAC（数模转换器），适用于各种模拟信号的处理。 7. **电机控制**：电机控制PWM（脉宽调制）模块，用于电机速度和方向的精确控制。 8. **编码器接口**：Quadrature Encoder接口，可用于位置检测和速度测量。这些丰富的外设选项使得LPC17xx系列微控制器在众多嵌入式应用中极具吸引力，包括物联网设备、工业控制、汽车电子、消费电子等多个领域。通过深入理解LPC17xx的数据手册，开发者可以充分利用其硬件资源，设计出高效、低功耗的嵌入式系统。

Product data sheet Rev. 9.7 — 1 May 2017 15 of 90

NXP Semiconductors

LPC1769/68/67/66/65/64/63

32-bit ARM Cortex-M3 microcontroller

P1[18]/

USB_UP_LED/

PWM1[1]/

CAP1[0]

32 H4 D9

[1]

I/O P1[18] — General purpose digital input/output pin.

O USB_UP_LED — USB GoodLink LED indicator. It is LOW when the

device is configured (non-control endpoints enabled), or when the

host is enabled and has detected a device on the bus. It is HIGH

when the device is not configured, or when host is enabled and has

not detected a device on the bus, or during global suspend. It

transitions between LOW and HIGH (flashes) when the host is

enabled and detects activity on the bus. (LPC1769/68/66/65/64

only).

O PWM1[1] — Pulse Width Modulator 1, channel 1 output.

I CAP1[0] — Capture input for Timer 1, channel 0.

P1[19]/MCOA0/

USB_PPWR

CAP1[1]

33 J4 C10

[1]

I/O P1[19] — General purpose digital input/output pin.

O MCOA0 — Motor control PWM channel 0, output A.

O USB_PPWR

— Port Power enable signal for USB port.

(LPC1769/68/66/65 only).

I CAP1[1] — Capture input for Timer 1, channel 1.

P1[20]/MCI0/

PWM1[2]/SCK0

34 K4 E8

[1]

I/O P1[20] — General purpose digital input/output pin.

I MCI0 — Motor control PWM channel 0, input. Also Quadrature

Encoder Interface PHA input.

O PWM1[2] — Pulse Width Modulator 1, channel 2 output.

I/O SCK0 — Serial clock for SSP0.

P1[21]/MCABORT

PWM1[3]/

SSEL0

35 F5 E9

[1]

I/O P1[21] — General purpose digital input/output pin.

O MCABORT

— Motor control PWM, LOW-active fast abort.

O PWM1[3] — Pulse Width Modulator 1, channel 3 output.

I/O SSEL0 — Slave Select for SSP0.

P1[22]/MCOB0/

USB_PWRD/

MAT1[0]

36 J5 D10

[1]

I/O P1[22] — General purpose digital input/output pin.

O MCOB0 — Motor control PWM channel 0, output B.

I USB_PWRD — Power Status for USB port (host power switch,

LPC1769/68/66/65 only).

O MAT1[0] — Match output for Timer 1, channel 0.

P1[23]/MCI1/

PWM1[4]/MISO0

37 K5 E7

[1]

I/O P1[23] — General purpose digital input/output pin.

I MCI1 — Motor control PWM channel 1, input. Also Quadrature

Encoder Interface PHB input.

O PWM1[4] — Pulse Width Modulator 1, channel 4 output.

I/O MISO0 — Master In Slave Out for SSP0.

P1[24]/MCI2/

PWM1[5]/MOSI0

38 H5 F8

[1]

I/O P1[24] — General purpose digital input/output pin.

I MCI2 — Motor control PWM channel 2, input. Also Quadrature

Encoder Interface INDEX input.

O PWM1[5] — Pulse Width Modulator 1, channel 5 output.

I/O MOSI0 — Master Out Slave in for SSP0.

Table 5. Pin description

…continued

Symbol Pin/ball Type Description

LQFP100

TFBGA100

WLCSP100

Product data sheet Rev. 9.7 — 1 May 2017 16 of 90

NXP Semiconductors

LPC1769/68/67/66/65/64/63

32-bit ARM Cortex-M3 microcontroller

P1[25]/MCOA1/

MAT1[1]

39 G5 F9

[1]

I/O P1[25] — General purpose digital input/output pin.

O MCOA1 — Motor control PWM channel 1, output A.

O MAT1[1] — Match output for Timer 1, channel 1.

P1[26]/MCOB1/

PWM1[6]/CAP0[0]

40 K6 E10

[1]

I/O P1[26] — General purpose digital input/output pin.

O MCOB1 — Motor control PWM channel 1, output B.

O PWM1[6] — Pulse Width Modulator 1, channel 6 output.

I CAP0[0] — Capture input for Timer 0, channel 0.

P1[27]/CLKOUT

/USB_OVRCR

CAP0[1]

43 K7 G9

[1]

I/O P1[27] — General purpose digital input/output pin.

O CLKOUT — Clock output pin.

I USB_OVRCR

— USB port Over-Current status. (LPC1769/68/66/65

only).

I CAP0[1] — Capture input for Timer 0, channel 1.

P1[28]/MCOA2/

PCAP1[0]/

MAT0[0]

44 J7 G10

[1]

I/O P1[28] — General purpose digital input/output pin.

O MCOA2 — Motor control PWM channel 2, output A.

I PCAP1[0] — Capture input for PWM1, channel 0.

O MAT0[0] — Match output for Timer 0, channel 0.

P1[29]/MCOB2/

PCAP1[1]/

MAT0[1]

45 G6 G8

[1]

I/O P1[29] — General purpose digital input/output pin.

O MCOB2 — Motor control PWM channel 2, output B.

I PCAP1[1] — Capture input for PWM1, channel 1.

O MAT0[1] — Match output for Timer 0, channel 1.

P1[30]/V

BUS

AD0[4]

21 H1 B8

[2]

I/O P1[30] — General purpose digital input/output pin.

I V

BUS

— Monitors the presence of USB bus power.

(LPC1769/68/66/65/64 only).

Note: This signal must be HIGH for USB reset to occur.

I AD0[4] — A/D converter 0, input 4.

P1[31]/SCK1/

AD0[5]

20 F4 C7

[2]

I/O P1[31] — General purpose digital input/output pin.

I/O SCK1 — Serial Clock for SSP1.

I AD0[5] — A/D converter 0, input 5.

P2[0] to P2[31] I/O Port 2: Port 2 is a 32-bit I/O port with individual direction controls for

each bit. The operation of port 2 pins depends upon the pin function

selected via the pin connect block. Pins 14 through 31 of this port

are not available.

P2[0]/PWM1[1]/

TXD1

75 B9 K1

[1]

I/O P2[0] — General purpose digital input/output pin.

O PWM1[1] — Pulse Width Modulator 1, channel 1 output.

O TXD1 — Transmitter output for UART1.

P2[1]/PWM1[2]/

RXD1

74 B10 J2

[1]

I/O P2[1] — General purpose digital input/output pin.

O PWM1[2] — Pulse Width Modulator 1, channel 2 output.

I RXD1 — Receiver input for UART1.

Table 5. Pin description

…continued

Symbol Pin/ball Type Description

LQFP100

TFBGA100

WLCSP100

Product data sheet Rev. 9.7 — 1 May 2017 17 of 90

NXP Semiconductors

LPC1769/68/67/66/65/64/63

32-bit ARM Cortex-M3 microcontroller

P2[2]/PWM1[3]/

CTS1/

TRACEDATA[3]

73 D8 K2

[1]

I/O P2[2] — General purpose digital input/output pin.

O PWM1[3] — Pulse Width Modulator 1, channel 3 output.

I CTS1 — Clear to Send input for UART1.

O TRACEDATA[3] — Trace data, bit 3.

P2[3]/PWM1[4]/

DCD1/

TRACEDATA[2]

70 E7 K3

[1]

I/O P2[3] — General purpose digital input/output pin.

O PWM1[4] — Pulse Width Modulator 1, channel 4 output.

I DCD1 — Data Carrier Detect input for UART1.

O TRACEDATA[2] — Trace data, bit 2.

P2[4]/PWM1[5]/

DSR1/

TRACEDATA[1]

69 D9 J3

[1]

I/O P2[4] — General purpose digital input/output pin.

O PWM1[5] — Pulse Width Modulator 1, channel 5 output.

I DSR1 — Data Set Ready input for UART1.

O TRACEDATA[1] — Trace data, bit 1.

P2[5]/PWM1[6]/

DTR1/

TRACEDATA[0]

68 D10 H4

[1]

I/O P2[5] — General purpose digital input/output pin.

O PWM1[6] — Pulse Width Modulator 1, channel 6 output.

O DTR1 — Data Terminal Ready output for UART1. Can also be

configured to be an RS-485/EIA-485 output enable signal.

O TRACEDATA[0] — Trace data, bit 0.

P2[6]/PCAP1[0]/

RI1/TRACECLK

67 E8 K4

[1]

I/O P2[6] — General purpose digital input/output pin.

I PCAP1[0] — Capture input for PWM1, channel 0.

I RI1 — Ring Indicator input for UART1.

O TRACECLK — Trace Clock.

P2[7]/RD2/

RTS1

66 E9 J4

[1]

I/O P2[7] — General purpose digital input/output pin.

I RD2 — CAN2 receiver input. (LPC1769/68/66/65/64 only).

O RTS1 — Request to Send output for UART1. Can also be

configured to be an RS-485/EIA-485 output enable signal.

P2[8]/TD2/

TXD2

65 E10 H5

[1]

I/O P2[8] — General purpose digital input/output pin.

O TD2 — CAN2 transmitter output. (LPC1769/68/66/65/64 only).

O TXD2 — Transmitter output for UART2.

P2[9]/

USB_CONNECT/

RXD2

64 F7 K5

[1]

I/O P2[9] — General purpose digital input/output pin.

O USB_CONNECT — Signal used to switch an external 1.5 k

resistor under software control. Used with the SoftConnect USB

feature. (LPC1769/68/66/65/64 only).

I RXD2 — Receiver input for UART2.

P2[10]/EINT0

/NMI 53 J10 K9

[6]

I/O P2[10] — General purpose digital input/output pin. A LOW level on

this pin during reset starts the ISP command handler.

I EINT0

— External interrupt 0 input.

I NMI — Non-maskable interrupt input.

Table 5. Pin description

…continued

Symbol Pin/ball Type Description

LQFP100

TFBGA100

WLCSP100

Product data sheet Rev. 9.7 — 1 May 2017 18 of 90

NXP Semiconductors

LPC1769/68/67/66/65/64/63

32-bit ARM Cortex-M3 microcontroller

P2[11]/EINT1/

I2STX_CLK

52 H8 J8

[6]

I/O P2[11] — General purpose digital input/output pin.

I EINT1

— External interrupt 1 input.

I/O I2STX_CLK — Transmit Clock. It is driven by the master and

received by the slave. Corresponds to the signal SCK in the I

S-bus

specification. (LPC1769/68/67/66/65/63 only).

P2[12]/EINT2

I2STX_WS

51 K10 K10

[6]

I/O P2[12] — General purpose digital input/output pin.

I EINT2

— External interrupt 2 input.

I/O I2STX_WS — Transmit Word Select. It is driven by the master and

received by the slave. Corresponds to the signal WS in the I

S-bus

specification. (LPC1769/68/67/66/65/63 only).

P2[13]/EINT3

I2STX_SDA

50 J9 J9

[6]

I/O P2[13] — General purpose digital input/output pin.

I EINT3

— External interrupt 3 input.

I/O I2STX_SDA — Transmit data. It is driven by the transmitter and

read by the receiver. Corresponds to the signal SD in the I

S-bus

specification. (LPC1769/68/67/66/65/63 only).

P3[0] to P3[31] I/O Port 3: Port 3 is a 32-bit I/O port with individual direction controls for

each bit. The operation of port 3 pins depends upon the pin function

selected via the pin connect block. Pins 0 through 24, and 27

through 31 of this port are not available.

P3[25]/MAT0[0]/

PWM1[2]

27 H3 D8

[1]

I/O P3[25] — General purpose digital input/output pin.

O MAT0[0] — Match output for Timer 0, channel 0.

O PWM1[2] — Pulse Width Modulator 1, output 2.

P3[26]/STCLK/

MAT0[1]/PWM1[3]

26 K1 A10

[1]

I/O P3[26] — General purpose digital input/output pin.

I STCLK — System tick timer clock input. The maximum STCLK

frequency is 1/4 of the ARM processor clock frequency CCLK.

O MAT0[1] — Match output for Timer 0, channel 1.

O PWM1[3] — Pulse Width Modulator 1, output 3.

P4[0] to P4[31] I/O Port 4: Port 4 is a 32-bit I/O port with individual direction controls for

each bit. The operation of port 4 pins depends upon the pin function

selected via the pin connect block. Pins 0 through 27, 30, and 31 of

this port are not available.

P4[28]/RX_MCLK/

MAT2[0]/TXD3

82 C7 G1

[1]

I/O P4[28] — General purpose digital input/output pin.

O RX_MCLK — I

S receive master clock. (LPC1769/68/67/66/65

only).

O MAT2[0] — Match output for Timer 2, channel 0.

O TXD3 — Transmitter output for UART3.

P4[29]/TX_MCLK/

MAT2[1]/RXD3

85 E6 F1

[1]

I/O P4[29] — General purpose digital input/output pin.

O TX_MCLK — I

S transmit master clock. (LPC1769/68/67/66/65

only).

O MAT2[1] — Match output for Timer 2, channel 1.

I RXD3 — Receiver input for UART3.

Table 5. Pin description

…continued

Symbol Pin/ball Type Description

LQFP100

TFBGA100

WLCSP100

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