MDT10C23 Datasheet, PDF (5/19 Pages) List of Unclassifed Manufacturers – Fully CMOS static design, 8-bit data bus,On chip ROM size : 2 K words

MDT10C23
(1)IAR ( Indirect Address Register) : R0
(2) RTCC (Real Time Counter/Counter Register) : R1
(2) PC (Program Counter) : R2
Write PC, CALL --- always 0
LJUMP, JUMP, LCALL --- from instruction word
RTIW, RET --- from STACK
A10
A9
A8
A7~A0
Write PC, JUMP, CALL --- from STATUS B6 b5
LJUMP, LCALL --- from instruction word
RTIW, RET --- from STACK
Write PC --- from ALU
LJUMP, JUMP, LCALL, CALL --- from instruction word
RTIW, RET --- 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 loss Flag bit
4
TF
Time overflow Flag bit
6-5
page
ROM Page select bit :
00 : 000H --- 1FFH
01 : 200H --- 3FFH
10 : 400H --- 5FFH
11 : 600H --- 7FFH
7
General purpose bit
This specification are subject to be changed without notice. Any latest information
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P. 5
2004/7 Ver. 1.1