DATA IN Phase

 

The DATA IN phase allows the target to request that data be sent to

 

the initiator from the target.

 

The target shall assert the I/O signal and negate the C/D and MSG

 

signals during the REQ/ACK handshake(s) of this phase.

 

INTERFACE

 

DATA OUT Phase

 

 

The DATA OUT phase allows the target to request that data be sent

 

from the target to the initiator.

 

The target shall negate the C/D, I/O, and MSG signals during the

 

REQ/ACK handshake of this phase.

 

STATUS Phase

 

The STATUS phase allows the target to request that status

 

information be sent from the target to the initiator.

 

The target shall assert the C/D and I/O signals and negate the MSG

 

signal during the REQ/ACK handshake of this phase.

 

Message Phase

 

The message phase is a term that references either a MESSAGE IN,

 

or a MESSAGE OUT phase. Multiple messages may be sent during

 

either phase. The first byte transferred in either of these phases shall

 

be either a single-byte message or the first byte of a multiple-byte

 

message. Multiple-byte messages shall be wholly contained within a

 

single message phase.

 

MESSAGE IN Phase

 

The MESSAGE IN phase allows the target to request that message(s)

 

be sent to the initiator from the target.

 

The target shall assert the C/D, I/O, and MSG signals during the REQ/ACK handshake(s) of this phase.

M3099GX/GH OEM Manual

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