EM78P156E Ver la hoja de datos (PDF) - ELAN Microelectronics

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Fabricante

EM78P156E

8-bit CMOS microprocessor, 1K13-bit (OTP-ROM), 2.3V~5.5V

ELAN Microelectronics 

EM78P156E

PCRD

P61~P67

PORT

Q

P

R

D

CLK

QC

L

PCWR

0

M

1U

X

Q

P

R

D

CLK

QC

L

PDWR

PDRD

IOD

TIn

D

P

R

Q

CLK

C

L

Q

*Pull-high (down) and open-drain are not shown in the figure.

Fig. 7(b) The circuit of I/O port and I/O control register for P61~P67

IOCF.1

D

P

R

Q

CLK

CQ

L

TI0

TI1

TI7

VCC

RF.1

D

P

R

Q

CLK

CQ

L

Interrupt

ENI instruction

Q

P

R

D

CLK

Q

C

L

DISI instruction

/SLEP

Interrupt

(Wake-up from SLEEP)

Next Instruction

(Wake-up from SLEEP)

Fig. 7(c) Block diagram of I/O Port 6 with input changed interrupt/wake-up

* This specification is subject to be changed without notice. 8.11.1999

B3-11

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