2022年JEDEC TS5111,TS5110串行总线热传感器设备标准更新

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"JESD302-1-01是JEDEC固态技术协会发布的一个关于Serial Bus Thermal Sensor Device Standard的更新版本，适用于TS5111和TS5110设备。该标准主要关注于串行总线温度传感器设备的设计、规格和性能。在2022年4月发布了这个JESD302-1.01的次要修订版，对原有的JESD302-1进行了更新和完善。文档是由6556(cdm_lj@163.com)于2022年6月13日下载的。" JESD（Joint Electron Device Engineering Council）是电子设备工程联合委员会的缩写，是一个全球知名的半导体行业标准制定组织，致力于推动电子组件和系统的标准化。JEDEC标准在行业中具有广泛的影响力，它们通常涵盖存储器、接口、电源管理等多个领域。本文件中提到的TS5111和TS5110是特定类型的串行总线温度传感器设备。这些设备在现代电子系统中起着关键作用，用于监控和管理设备的热状态，确保系统在安全的工作温度范围内运行。温度传感器通过串行总线与主控制器通信，报告实时温度数据，从而帮助系统进行动态热管理，如调整工作负载或启动冷却机制。 JESD302-1.01标准详细规定了这些串行总线温度传感器的电气特性、机械尺寸、功能接口以及性能指标。例如，它可能包括传感器的精度、响应时间、工作电压范围、信号协议等关键参数。此外，标准还可能包含兼容性测试、可靠性验证等方面的要求，以确保不同制造商的产品能够无缝集成到各种系统中。值得注意的是，JEDEC在制定标准时，并不考虑可能涉及的专利问题。这意味着采用这些标准的公司需要自行处理任何潜在的专利侵权风险。同时，JEDEC标准的目的是促进制造商和购买者之间的理解和互换性，减少产品选择和获取的时间，不论标准在国内还是国际上使用。 JESD302-1-01标准对于设计、制造和使用串行总线温度传感器的工程师来说是非常重要的参考资料，它提供了一个统一的框架，促进了行业的标准化和技术创新。

JEDEC Standard No. 302-1.01

Page 9

6.5.2 Read Operation - Data Packet

The TS5 device operate on a standard I3

C Basic serial interface. Transactions where the TS5 device is the

targeted slave device begin with the Host issuing a START condition followed by a 7-bit TS5 device

address then a read or write bit, RW. All data are transmitted with the most significant bit MSB first.

During the address followed by R/W bit transmission, the TS5 device typically replies with an ACK unless

there are exceptional conditions when it may passively assert a NACK. See

Table 10. The “T” bit carries

Parity information from the Host for each byte prior to Repeat START. After Repeat START, “T” bit

rries information from TS5 device to Host indicating Continuous (‘1’) or Stop (‘0’) whether it is

transmitting the last byte or not.

The Packet Error Code (PEC) function is disabled by default when the TS5 device is put in I3C Ba

sic

mode. The host may optionally enable this function through Table 77, “MR18”

[7] or DEVCTRL CCC. If

enabled, the PEC is appended as shown in Table 10. If PEC is enabled, the host must complete the burst

length as indicated in CMD field. In other words, the host must not interrupt the burst length pre-maturely

r Read operation.

Table 10 — Read Command Data Packet; PEC Disabled

Start Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 A/N/T Stop

S or Sr 0 X 1 0 HID W=0

1,2,3

1. See Figure 2 to see how the transition occurs from Slave Open Drain (ACK) to Host Push Pull Operation (1st bit of Addr,

bit [7]).

. The TS5 NACKs if there is a parity error in a previous transaction when host performs consecutive transactions with

epeat Start.

3. The TS5 does not check for parity error in subsequent bytes when it determines the 7-bit device select code issued by

he host does not match with its own device code. The TS5 ignores the entire packet until STOP or next Repeat Start

operation.

Address [7:0] T

Sr 0

1 0 HID R=1

A/N

4,5

4. If slave device NACKs during Repeat Start for any reason, the host my re-try Repeat Start again. The host can do the

Repeat Start as many times it may desire. If slave device NACKs due to parity error in previous bytes, it will always

NACK regardless of how many times the Host tries Repeat Start. If there were no parity errors, the TS5 may eventually

ACK.

5. See F

igure 4 to see how the transition occurs from Host Push Pull Operation to Slave Open Drain (ACK).

Data T=1

... T=1

Data

T=1

6,7

6. See Figure 5 to see how Host ends slave device operation.

7. When last byte (i.e MR255) is reached (extreme rare case), the slave device sends T = ‘0’. See Figure 6 to see how slave

device ends the operation followed by Host STOP operation.

or P

8. Repeat Start or Repeat Start with 7’h7E.

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JEDEC

JEDEC Standard No. 302-1.01

Page 11

The host may optionally allow TS5 device to request IBI. For this case, the transactions to the TS5 device

begin with the I3C Basic host issuing a START condition followed by 7’h7E and then write bit. If TS5

device has a pending IBI, it transmits its 7-bit device select code followed by R=1. If TS5 device has no

pending IBI, there is no action taken by TS5. The

Table 8 & Table 9 shows the I3C Ba

sic bus write

command data packet with optional IBI header for PEC disabled and PEC enabled case respectively. Note

at in Table 9, PEC calculation does not include IBI header byte (7’h7E followed by W=0).

Table 12 — Read Command Data Packet w/ IBI Header; PEC Disabled

Start Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 A/N/T Stop

S 1 1 1 1 1 1 0 W=0

1,3

1. See Figure 2 to see how the transition occurs from Slave Open Drain (ACK) to Host Push Pull Operation (Repeat Start)

Sr 0 X 1 0 HID W=0

2,3,4

2. See Figure 4 to see how the transition occurs from Host Push Pull Operation to Slave Open Drain (ACK) and see

Figure 2 to see how the transition occurs from Slave Open Drain (ACK) to Host Push Pull Operation (1st bit of Addr,

bit [7]).

3. The TS5 NACKs if there is a parity error in a previous transaction when host performs consecutive transactions with

epeat Start.

4. The TS5 does not check for parity error in subsequent bytes when it determines the 7-bit device select code issued by

he host does not match with its own device code. The TS5 ignores the entire packet until STOP or next Repeat Start

operation.

Address [7:0] T

Sr 0

1 0 HID R=1

A/N

5,6

5. See Figure 4 to see how the transition occurs from Host Push Pull Operation to Slave Open Drain (ACK).

6. If slave device NACKs during Repeat Start for any reason, the host my re-try Repeat Start again. The host can do the

Repeat Start as many times it may desire. If slave device NACKs due to parity error in previous bytes, it will always

NACK regardless of how many times the Host tries Repeat Start. If there were no parity errors, TS5 may eventually

ACK.

Data T=1

... T=1

Data

T=1

7,8

7. See Figure 5 to see how Host ends slave device operation.

8. When last byte (i.e MR255) is reached (extreme rare case), the slave device sends T = ‘0’. See Figure 6 to see how slave

device ends the operation followed by Host STOP operation.

or P

9. Repeat Start or Repeat Start with 7’h7E.

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JEDEC

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