Z86E61(2008) 데이터 시트보기 (PDF) - Zilog

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Z86E61
(Rev.:2008)

CMOS Z8 16K/32K EPROM Microcontroller

Zilog 

Z86E61/E63

CMOS Z8 16K/32K EPROM Microcontroller

16

Z86E61

/E63

MCU

Port 3

(I/O or Control)

Figure 9. Port 3 Configuration

Port 3 is configured under software control to provide the following control func-

tions: handshake for Ports 0 and 2 (DAV and RDY); four external interrupt request

signals (IRQ3-IRQ0); timer input and output signals (TIN and TOUT) Data Mem-

ory Select (/DM) and EPROM control signals (P30 = CE, P31 = OE, P32 = EPM

and P33 = VPP).

Table 21. Port 3 Pin Assignments

Pin I/O CTCI Int. P0 HS P1 HS P2 HS UART

Ext EPROM

P30 IN TIN

IRQ3

Serial In

CE

P31 IN TIN

IRQ2

D/R

OE

P32 IN TIN

IRQ0 D/R

EPM

P33 IN TIN

IRQ1

D/R

VPP

P34 OUT TOUT

R/D

DM

P35 OUT TOUT

R/D

P36 OUT TOUT

R/D

P37 OUT TOUT

Serial Out

T0

IRQ4

T1

IRQ5

1. HS = Handshake Signals D = Data Available R = Ready

PS014401-1001

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