Z8018233FSC datasheet(16/109 Pages) ZILOG

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Z80182/Z8L182

ZILOG INTELLIGENT PERIPHERAL

PRELIMINARY

Zilog

DS971820600

Product Specification/Technical Manuals of each discrete

product. The following subsections describe each of the

individual units of the Z182.

Z80182/Z8L182 FUNCTIONAL DESCRIPTION

Functionally, the on-chip Z182 MPU and ESCC™ are the

same as the discrete devices (Figure 1). Therefore, for a

detailed description of each individual unit, refer to the

Z182 MPU FUNCTIONAL DESCRIPTION

This unit provides all the capabilities and pins of the Zilog

Z8S180 MPU (Static Z80180 MPU). Figure 4 shows the

S180 MPU Block Diagram of the Z182. This allows 100%

software compatibility with existing Z180™ (and Z80®)

software. The following is an overview of the major functional

units of the Z182.

Timing &

Clock

Generator

Bus State Control

Interrupt

CPU

DMACs

(2)

16-Bit

Programmable

Reload Timers

(2)

Clocked

Serial I/O

Port

Asynchronous

SCI

(Channel 0)

Asynchronous

SCI

(Channel 1)

MMU

/DREQ1

/TEND

TxA0

CKA0 /DREQ0

RxA0

/RTS0

/CTS0

/DCD0

TxA1

CKA1 /TEND0

RxA1

A18

/TOUT

TxS

RxS//CTS

CKS

A19-A0

D7-D0

Figure 4. S180 MPU Block Diagram of Z182

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