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Advanced Configuration and Power Interface Specification

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<strong>Advanced</strong> <strong>Configuration</strong> <strong>and</strong> <strong>Power</strong> <strong>Interface</strong> <strong>Specification</strong><br />

SMB_PRTCL:<br />

0x00 to indicate comm<strong>and</strong> completion.<br />

12.9.2.6 Read Byte<br />

Data Sent:<br />

SMB_ADDR:<br />

SMB_CMD:<br />

SMB_PRTCL:<br />

Address of SMBus device.<br />

Comm<strong>and</strong> byte to be sent.<br />

Write 0x07 to initiate the read byte protocol, or 0x87 to initiate the read byte protocol<br />

with PEC.<br />

Data Returned:<br />

SMB_DATA[0]:<br />

SMB_STS:<br />

SMB_PRTCL:<br />

Data byte received.<br />

Status code for transaction.<br />

0x00 to indicate comm<strong>and</strong> completion.<br />

12.9.2.7 Write Word<br />

Data Sent:<br />

SMB_ADDR:<br />

SMB_CMD:<br />

SMB_DATA[0]:<br />

SMB_DATA[1]:<br />

SMB_PRTCL:<br />

Address of SMBus device.<br />

Comm<strong>and</strong> byte to be sent.<br />

Low data byte to be sent.<br />

High data byte to be sent.<br />

Write 0x08 to initiate the write word protocol, or 0x88 to initiate the write word protocol<br />

with PEC.<br />

Data Returned:<br />

SMB_STS:<br />

SMB_PRTCL:<br />

Status code for transaction.<br />

0x00 to indicate comm<strong>and</strong> completion.<br />

12.9.2.8 Read Word<br />

Data Sent:<br />

SMB_ADDR:<br />

SMB_CMD:<br />

SMB_PRTCL:<br />

Address of SMBus device.<br />

Comm<strong>and</strong> byte to be sent.<br />

Write 0x09 to initiate the read word protocol, or 0x89 to initiate the read word protocol<br />

with PEC.<br />

652 April, 2015 Version 6.0

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