W65C21S 데이터 시트보기 (PDF) - Unspecified

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W65C21S

Peripheral Interface Adapter (PIA)

Unspecified 

The Western Design Center, Inc.

W65C21S Data Sheet

Figure 3. W65C21S PIA Block Diagram

65xx, 68xx

MICROPROCESSOR

FAMILIES

D0-D7 (8)

PHI2

RWB

RS0

RS1

CS0

CS1

CS2B

RESB

IRQAB

IRQBB

VSS

VCC

W65C21S

PIA

(8) PA0-PA7

CA1

CA2

CB1

CB2

(8) PB0-PB7

PERIPHERAL

DEVICE

A

PERIPHERAL

DEVICE

B

Figure 4. Interface Signals Relationship

The Western Design Center

W65C21S

4

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