CXD1185CQ Datasheet, PDF (2/35 Pages) Sony Corporation – SCSI 1 Protocol Controller

Block Diagram (CXD1185CQ)
RST 20
BSY 18
ATN 17
MSG 22
C/D 24
I/O 28
+
SCSI
Control
Reset
Control
Arbiration
Control
CXD1185CQ/CR
29 RES
33-40
C7-C0
SEL 23
+
Sync Transfer Control
–1
Transfer Byte
Counter
REQ 25 +
ACK 19
+
5, 7-10, 12-14
DB7-DB0
+
D7-D0
47-54
DMA Control
FIFO Counter
FIFO
ID
DP 55
DBP 15
Parity
Generate/Check
Selection
Control
Time-Out
Interrupt Request
Interrupt Mask
Configuration
43 DRQ
44 DACK
42 IRQ
57 CLK
Command
Status
General-Use
I/O Port
Decode
Command
Interpreter
59 INIT
60 _TARG
Differential
Control
+
61-64
P3-P0
1-4
A3-A0
30 CS
32 WE
31 RE
—2—