Z8018533FSC View Datasheet(PDF) - Zilog

Part Name

Description

Manufacturer

Z8018533FSC

SMART PERIPHERAL CONTROLLERS

Zilog 

Zilog

PRELIMINARY

Z80185/Z80195

SMART PERIPHERAL CONTROLLES

Z80185 BIDIRECTIONAL CENTRONICS P1284 CONTROLLER (Continued)

Internal Data Bus

PARM

Register

State

Machine

State

Counter

PARC, PARC2

Registers

PART

Register

Time

Counter

RLE

Counter

Data Path

Clocking

PARV

Register

IEI

Interrupt

Logic

IEO

Output Holding

Register

PIA2 Direction

Register

PIA2 Data

Register

Data Path

Direction

Host/Peripheral

Control Signal

Management

nAck

Busy

PError

Select

nFault

nAutoFd

nStrobe

nSelectIn

nInit

PIA27-20

Figure 81. Bidirectional Centronics P1284 Controller

Functional Block Description

DS971850301

69

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