MDT10P05 Datasheet, PDF (4/16 Pages) Micon Design Technology Corporation – 8-bit micro-controller

(6) PORT A : R5
MDT10P05
PA3~PA0, I/O Register
(7) PORT B : R6
PB7~PB0, I/O Register
(8) TMR (Time Mode Register)
Bit
20
3
4
5
Symbol
PS2 0
PSC
TCE
TCS
Function
Prescaler Value
RTCC rate
WDT rate
000
1:2
1:1
001
1:4
1:2
010
1:8
1:4
011
1 : 16
1:8
100
1 : 32
1 : 16
101
1 : 64
1 : 32
110
1 : 128
1 : 64
111
1 : 256
Prescaler assignment bit :
0
RTCC
1 : 128
1
Watchdog Timer
RTCC signal Edge :
0 Increment on low-to-high transition on RTCC pin
1 Increment on high-to -low transition on RTCC pin
RTCC signal set :
0 Internal instruction cycle clock
1 Transition on RTCC pin
( 9 ) C P I O A , C P IO B (Control Port I/O Mode Register)
The CPIO register is “write -only”
“0”, I/O pin in output mode;
“1”, I/O pin in input mode.
(10) EPROM Option by writer programming :
Oscillator Type
RC Oscillator
HFXT Oscillator
XTAL Oscillator
LFXT Oscillator
Oscillator Start-up Time
1 5 0 _µs , 2 0 m s , 4 0 m s , 8 0 m s
20 ms,40ms,80ms
20ms,40 ms,80ms
40 ms,80 ms
This specification are subject to be changed without notice. Any latest information
please preview ttp;//www.mdtic.com.tw
P. 3
2004/1
VER1.2