MDT90P01_09 Datasheet, PDF (7/11 Pages) Micon Design Technology Corporation – 4-bit micro-controller

Watchdog Timer control
Watchdog timer disable all the time
Watchdog timer enable all the time
MDT90P01
Power Edge Detect
PED Disable
PED Enable
Security state
Security Disable
Security Enable
The default security state of EPROM is weak disable. Once the IC was set to
enable or disable, it’s forbidden to change.
(B) Program Memory
Address
000-1FF
000
Description
Program memory
The starting address of power on , pin change or WDT time-out reset.
9. Reset Condition for all Registers
Register
Address
Power-On Reset
WDT Reset
CPIOB
--
1111
1111
TMRH
--
1111
1111
TMRL
--
1111
1111
RTCCL
01h
xxxx
uuuu
PC
02h
0000
0000
STATUSL
03h
1xx1
#uu#
STATUSH
04h
0000
0000
IODS
05h
0000
0000
PORT B
06h
xxxx
uuuu
RTCCH
07h
xxxx
uuuu
Note : u＝unchanged, x＝unknown, - ＝unimplemented, read as “0”
#＝value depends on the condition of the following table
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. 7
2009/6 Ver. 1.1