MDT10P22(DF)
(9) TMR (Time Mode Register)
Bit
Symbol
Prescaler Value
Function
RTCC rate
WDT rate
0 0 0
1:2
1:1
0 0 1
1:4
1:2
0 1 0
1:8
1:4
0 1 1
1 : 16
1:8
1 0 0
1 : 32
1 : 16
1 0 1
1 : 64
1 : 32
1 1 0
1 : 128
1 : 64
1 1 1
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
2—0
PS2—0
3
PSC
4
TCE
5
TCS
(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) EPROM Option by writer programming :
A. FIRST WORD
Oscillator Type
RC
Oscillator
Oscillator Start-up Time
150
μs
20 ms
40 ms
80 ms
LFXT Oscillator
XTAL Oscillator
HFXT Oscillator
Watchdog Timer control
Watchdog timer disable all the time
Watchdog timer enable all the time
This specification are subject to be changed without notice. Any latest information
please preview http;//www.mdtic.com.tw
P. 7
2007/8
Ver. 1.6
MDTIC [ Micon Design Technology Corporation ]
