Avago Technologies LSI53C825AE - Manual (Page 189)

High Level SCSI SCRIPTS Mode 5-5
Figure 5.1 SCRIPTS Overview
System Processor
System Memory
SCSI Initiator Write Example
×
Select ATN 0, alt_addr
× Move from identify_msg_buf, when MSG_OUT
× Move from cmd_buf, when CMD
× Move from data_buf when DATA_OUT
× Move from stat_in_buf, when STATUS
× Move from msg_in_buf, when MSG_IN
× Move SCNTL2 & 7F to SCNTL2
×
Clear ACK
×
Wail disconnect alt2
×
Int 10
Table
byte count
address
byte count
address
byte count
address
byte count
address
Message Buffer
Command Buffer
Data Buffer
Status Buffer
S
Y
S
T
E
M
Write DSA
Write
DSP
Fetch
SCRIPTS
Data
LSI53C825A SCSI Bus
B
U
S