ADLINK CoreExpress-ECO2 - Manual (Page 22)

4.14 Get Startup-Temperatures of CPU and Board
This command reads the CPU and Board Temperatures at power-on time. The temperatures are
transmitted in a signed char Bytes.
START SMC_addr ACK command ACK START (Repeat) SMC_addr+1 ACK
length ACK(C) CPU_temp ACK(C) Board_temp ACK(C) STOP
Table 4.14.1 SMC transmitter format of the Get Startup-Temperatures of CPU and Board Command
ITEM DESCRIPTION
START SM-bus start condition
SMC_addr 0x50 (8-bit)
ACK SM-bus acknowledge condition generated by receiver
command 0x3A = “Get Startup-Temperatures of CPU and Board” Command code
Length 0x02 = 2 Bytes data length
CPU_temp CPU temperature at Startup. The format of this byte is signed char.
Board_temp Board temperature at Startup. The format of this byte is signed char.
STOP SM-bus stop condition
Table 4.14.2 Explanation of Table 4.14.1