
Application Note
Interfacing the ISCC™ to the 68000 and 8086
16-7
Figure 3. ISCC Interface to a 68000 Microprocessor
/UDS
/RESET
/UDS
/LDS
/DTACK
D15-0
A23-1
R//W
/IPL2
/IPL1
/IPL0
/BGACK
BG
/BR
Interrupt
Priority
Bus
Arbitration
Lo
ic
Latch
Address
Decode
FC2
FC1
FC0
/RESET
/DS
/RD
/WR
WAIT/RDY
AD15-AD0
/AS
/UAS
R//W
/INTACK
/INT
/BUSREQ
/BUSACK
/BGACK
A1/A/B
A0/SCC/DMA
/CS
A2
Vcc
Vcc
/BGACK
16C3
6800
/BGACK
A1
/OE
DQ
Vcc
A15-1
Latch
/OE
DQ
A0
/BGACK
Vcc
Vcc
A23-16
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