8 ec command program sequence, 9 ec space definition, Table 6-6 – Artesyn MITX-CORE-820 Installation and Use (July 2014) User Manual
Page 108: Ec command program sequence, Table 6-7, Ec space definition, Firmware
Firmware
MITX-CORE-820 Installation and Use (6806800M10H)
108
6.2.8
EC Command Program Sequence
6.2.9
EC Space Definition
Table 6-6 EC Command Program Sequence
Command Byte
Command Name
Programming Sequence
80h
Read EC
Write EC_CMD with 80h
Write address byte to EC_DAT
Wait SCI for OBF=1
Read EC_DAT with data in
81h
Write EC
Write EC_CMD with 81h
Wait SCI for IBF=0
Write address byte to EC_DAT
Wait SCI for IBF=0
Write data byte to EC_DAT
Wait SCI for IBF=0
82h
Burst Enable
Write EC_CMD with 82h
Wait SCI for OBF=1
Read EC_DAT with 90h
83h
Burst Disable
Write EC_CMD with 83h
Wait SCI for IBF=0
84h
Query EC
Write EC_CMD with 84h
Wait SCI for OBF=1
Read EC_DAT with SCI ID number
Table 6-7 EC Space Definition
Table Offset
Length (Bytes)
Description
0x00
1
Thermal Version
0x01
1
Maximum Fan Level Support