MDT10C23 Datasheet, PDF (7/19 Pages) List of Unclassifed Manufacturers – Fully CMOS static design, 8-bit data bus,On chip ROM size : 2 K words

MDT10C23
(9) TMR (Time Mode Register)
Bit
20
3
4
5
Symbol
PS2 0
PSC
TCE
TCS
Function
Prescaler Value
RTCC rate
WDT rate
00 0
1:2
1:1
001
010
1:4
1:8
1:2
1:4
011
1 : 16
1:8
100
1 : 32
1 : 16
101
110
1 : 64
1 : 128
1 : 32
1 : 64
111
1 : 256
1 : 128
Prescaler assignment bit :
0 RTCC
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
(10) CPIO A, CPIO 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.
(11) ROM Option by writer programming :
Oscillator Type
RC Oscillator
LFXT Oscillator
XTAL Oscillator
HFXT Oscillator
Oscillator Start-up Time
150 µs
20 ms
40 ms
80 ms
Watchdog Timer control
Watchdog timer disable all the time
Watchdog timer enable all the time
Power Edge Detect
PED Disable
PED Enable
This specification are subject to be changed without notice. Any latest information
please preview http;//www.mdtic.com.tw
P. 7
2004/7 Ver. 1.1