(4) STATUS (Status register) : R3
Bit
Symbol
Function
0
1
2
3
4
5
6—7
C
HC
Z
PF
TF
page 0
——
Carry bit
Half Carry bit
Zero bit
Power loss Flag bit
Time overflow Flag bit
Page select bit :
0 : 000H --- 1FFH
1 : 200H --- 3FFH
General purpose bit
MDT2010(JG)
(5) MSR (Memory Select Register) : R4
(6) PORT A : R5
PA3~PA0, I/O Register
(7) PORT B : R6
PB7~PB0, I/O Register
(8) TMR (Time Mode Register)
Bit
Symbol
Function
Prescaler Value
RTCC rate
WDT rate
2—0
3
4
5
PS2—0
PSC
TCE
TCS
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
This specification are subject to be changed without notice. Any latest information please preview http;//www.mdtic.com.tw
P. 3
2006/4 VER1.1