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S1R72104 Technical Manual
7.3.23 Test (TEST) R(/W)
Used for testing a LSI. Basically, writing in this register is prohibited.
CKOUTbit is valid, however, even when no test is done. If this bit is used, be sure to set all the other bits to
"0".
Be cautious not to set "1" to bits other than CKOUTbit, because it will put the IC into Test mode, affecting on
the IC's basic operation.
7
6
5
TM2
TM1
TM0
BIT4 CLK OUT
Setting HIGH to this bit causes the internal operation clock, 40MHz, output from TESTMON(Pin13) pin.
7.3.24 Revision Reg. (REVISION) R
Shows the revision No. of the IC.
7
6
5
REV7
REV6
REV5
7.4 SCSI Control Commands
7.4.1 Control Commands and Command Codes
Code
00h
01h
Abort_SCSI
02h
03h
04h
Assert_RST
05h
Busfree
06h
07h
Assert_ATN
08h
SEL_MSG_clear
09h
Select_WithoutATN
0Ah
Select_WithATN_Command
0Bh
SelectWithoutATN_Command
0Ch
Wait_Selection_Command
0Dh
Reselection
0Eh
Wait_Reselection
0Fh
Wait_SCAM_Selection_Command
10h
11h
Negate_ACK
12h
Command_Out
13h
DMA_Data_Out
14h
Non-DMA_Data_Out
15h
DMA_Data_In
16h
Non-DMA_Data_In
17h
Status_In
18h
Message_In
19h
Message_Out
1Ah
Status_Message
20
4
3
2
CKOUT
-
OFST
4
3
2
REV4
REV3
REV2
Command names
1
0
1Eh
SCBC
DMBC
CLK OUT
1
0
1Fh
REV1
REV0
Summary of commands
Reserved
SCSI Abort command
Reserved
SCSI Bus Clear command
Reserved
SCAM control commands
Connection system commands
Reserved
Transfer system commands
EPSON
Rev.1.1
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