MDT90P01_09 Datasheet, PDF (3/11 Pages) Micon Design Technology Corporation – 4-bit micro-controller

7. Pin Function Description
MDT90P01
Pin Name
PB0
PB1
PB2/RTCC
PB3
V_dd
V_ss
I/O
Function Description
I/O Port B, TTL input level .Can be software programmed for internal weak pull-up
and wake-up from SLEEP on pin change
I/O Port B, TTL input level . Can be software programmed for internal weak pull-up
and wake-up from SLEEP on pin change
I/O Real Time Clock/Counter, Schmitt Trigger input levels(Clock input to RTCC).
TTL input level(data input)
MDT90P01ST2611(Output is open drain type).
MDT90P01ST2612(Output is CMOS type).
I/O Port B, TTL input level . Output is open drain type .Can be software
programmed for internal weak pull-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
This specification is subject to be changed without notice. Please visit our web site for the most updated information.
http://www.mdtic.com.tw
P. 3
2009/6 Ver. 1.1