MDT10P611 Datasheet, PDF (4/16 Pages) Micon Design Technology Corporation – 8-bit micro-controller

(1) IAR (Indirect Address Register): R0
(2) RTCC (Real Time Clock/Counter register): R01
(3) PC (Program Counter): R02, R0A
Write PC --- from PCHLAT
LJUMP, LCALL --- from instruction word
RTWI, RET, RTFI --- from STACK
A9
A8
A7~A0
MDT10P611
Write PC --- from ALU
LJUMP, LCALL --- from instruction word
RTWI, RET, RTFI --- from STACK
(4) STATUS (Status register): R3
Bit
Symbol
Function
0
C
Carry bit
1
HC
Half Carry bit
2
Z
Zero bit
3
PF
Power down bit
4
TF
WDT Timer overflow Flag bit
5
RBS0 Register Bank select bit
0: 00h~7Fh
1: 80h~FFh
7~6
--
General Purpose bit
(5) MSR (Memory Bank Select Register): R4
b7
b6
b5
b4
b3
b2
b1
b0
Memory Bank Select Register
0: 00h~7Fh
1: 80h~FFh
(6) PORT A: R05
PA5~PA0, I/O register.
(7) PORT B: R06
PB5~PB0, I/O register, PB3 input only.
Indirect Addressing Mode
This specification are subject to be changed without notice. Any latest information please preview
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P. 4
2011/08 Ver. 1.0