MDT10F630
(1). 00H or 80H : IAR ( Indirect Address Register)
Use contents of MSR to address data memory (not a physical register)
(2). 01H : RTCC (Timer0 Counter)
8-bit real time clock/counter
(3). 02H or 82H : PCL (Program Counter Low Byte)
Low order 8 bits of the Program Counter (PC)
(4). 03H or 83H : STATUS (Status register)
Bit
Symbol
Function
0
1
2
3
4
5
C
Carry bit
HC
Z
Half Carry bit
Zero bit
/PF
/TF
page
Power loss Flag bit
WDT time-out Flag bit
Register page select bit :
0 : 00H --- 7FH
1 : 80H --- FFH
6—7
——
General purpose bit
(5). 04H or 84H : MSR (Memory Select Register)
Memory Bank Select Register :
0 : 00~7F (Bank0)
1 : 80~FF (Bank1)
MSR
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Indirect Addressing Mode
(6). 05H : Port A data output register
Bit 7
-
Bit 6
-
Bit 5
PA5
Bit 4
PA4
Bit 3
PA3
Bit 2
PA2
Bit 1
PA1
Bit 0
PA0
Port A
Bit 7-6 : Unimplemented
Bit 5-0 : PA5~PA0, I/O Register
(7). 06H : Unimplemented Register.
This specification is subject to be changed without notice. Please visit our web site for the most updated information.
http://www.mdtic.com.tw P.5 2008/4 Ver. 1.0
MDTIC [ Micon Design Technology Corporation ]
