Avago Technologies LSI53C876E - Manual (Page 195)

High Level SCSI SCRIPTS Mode 5-5
Figure 5.1 SCRIPTS Overview
System Processor
System Memory
(or Internal RAM)
SCSI Initiator Write Example
select ATN0, alt_addr
move 1, identify_msg_buf, when MSG_OUT
move 6, cmd_buf, when CMD
move 512, data_buf, when DATA_OUT
move 1, stat_in_buf, when STATUS
move 1, msg_in_buf, when MSG_IN
move SCNTL2 & 7F to SCNTL2
clear ACK
wait disconnect alt2
int 10
Data Structure
Message Buffer
Command Buffer
Data Buffer
Status Buffer
LSI53C876
SCSI
Bus
Write DSP
Fetch
SCRIPTS
Data
(Data is not fetched across system bus if
internal RAM is enabled.)
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