Applications examples (continued) – Zilog Z16C35 User Manual

Page 318

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Application Note

Interfacing the ISCC™ to the 68000 and 8086

16-8

APPLICATIONS EXAMPLES

(Continued)

Figure 4. ISCC Interface to an Intel 8086 Microprocessor

RDY Timing

Synchronizer

BUS Arbitration and Timing

Synchronization

System

Address

Bus Upper
Order Bits

RESET

ALE

HOLD

*/RD//GT or

/INTR

/INTA

RDY

/RESET

/RD

/WR

/AS

AD15-AD0

A1/A/B

/CS

/UAS

/INT

/INTACK

WAIT/RDY

A0/SCC/DMA

Latch

D

Q

Latch

D

Q

Chip

Select

Decode

Vcc

Vcc

/RD

/WR

AD15-AD0

A19-A16

HLDA

/BUSREQ

/BUSACK

System Address

Bus Lower

Order Bits

Latch

D

Q

/BHE

A0

* maximum mode

8086

16C35

/DS

R/W

/OE

/OE

A7

A6

Page 312 of 316

UM011002-0808

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