MDT90P01

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P. 3

2008/5 Ver. 1.0

7. Pin Function Description

Pin Name

I/O

Function Description

PB0

I/O

Port B, TTL input level .Can be software programmed for internal weak

pill-up and wake-up from SLEEP on pin change

PB1

I/O

Port B, TTL input level .Output is open drain type. Can be software

programmed for wake-up from SLEEP on pin change

PB2/RTCC

I/O

Real Time Clock/Counter, Schmitt Trigger input levels. .Output is open

drain type.

PB3

I/O

Port B, TTL input level . Can be software programmed for internal weak

pill-up and wake-up from SLEEP on pin change

Power supply

Ground

8. Memory Map

(A) Register Map

Address

Description

BANK0

01

RTCCL

02

PCL

03

STATUSL

04

STATUSH

05

IODS

06

PORTB

07

RTCCH

08~1F

General purpose registers

(1) RTCCL (Real Time Counter/Counter Register) : R1

RTCCH (Real Time Counter/Counter Register) : R7