MB86606A Datasheet, PDF (14/64 Pages) Fujitsu Component Limited. – FAST-20 SCSI Protocol Controller

MB86606A
s BLOCK DIAGRAM
1. 16-Bit Bus Mode
MSG
C/D
I/O
ATN
BSYOE
BSY
SELOE
SEL
RSTOE
RST
REQ
ACK
INIT
TARG
DB15 to 8,
UDBP
DB7 to 0,
LDBP
DBOE15 to 8,
UDBOEP
DBOE7 to 0,
LDBOEP
S/DSEL
14
MPU Interface
1 _Internal
Processor
5 _Various
Registers
2
Timer
3
Phase
Controller
4
Transfer
Controller
6 (32 Bytes)
Receive
MSG, CMD,
Status Buffer
7 (32 Bytes)
Send
MSG, CMD,
Status Buffer
8 (2048 Bytes)
User
Program
Memory
9 (512 Bytes)
Data
Register
DREQ
DACK
DMBHE (DMUDS)
DMA0
DMD15 to 8, UDMAP
DMD7 to 0, LDMDP
IOWR (DMLDS)
IORD (DMR/W)
TP