參數(shù)資料
型號: MB86604LPFV
元件分類: 總線控制器
英文描述: SCSI BUS CONTROLLER, PQFP100
封裝: PLASTIC, LQFP-100
文件頁數(shù): 44/56頁
文件大?。?/td> 382K
代理商: MB86604LPFV
49
MB86604L
4.
Programmable Commands
The user program is stored in the user program memory and begins operation when the user program head address
is written in the command register.
Programmable commands are composed of discrete and special commands and have a command length of one
(1) or two (2) bytes.
Command field assign
Command type
Command code (1st byte)
Operand (2nd byte)
Discrete commands
Message, command, or status phases
send command
Memory address of the data to be sent.
Message, command, or status phases
receive command
Memory address of received data being
stored.
Data phase receive/send command or
do not perform transfer command
Special commands
AND command
Data for AND operation or memory
address of data for AND operation.
TEST AND command
Data for AND operation or memory
address of data for AND operation.
COMPARE command
Data for COMPARE operation or
memory address of data for COMPARE
operation.
Conditional branch command
Jump head address
MOVE command
Memory address to be moved.
STOP command
User status code
NOP command
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