MDT2005(IB)
6. Memory Map
(A) Register Map
Address
00
01
02
03
04
05
06
07~1F
Description
Indirect Addressing Register
RTCC
PC
STATUS
MSR
Port A
Port B
Internal RAM, General Purpose Register
(1) IAR ( Indirect Address Register) : R0
(2) RTCC (Real Time Counter/Counter Register) : R1
(3) PC (Program Counter) : R2
Write PC, CALL --- always 0
LJUMP, JUMP, LCALL --- from instruction word
RTWI, RET --- from STACK
A9
A8
A7~A0
Write PC, JUMP, CALL --- always 0 (ROM 0.5K)
LJUMP, LCALL --- from instruction word
RTWI, RET --- from STACK
Write PC --- from ALU
LJUMP, JUMP, LCALL, CALL --- from instruction word
RTWI, RET --- from STACK
This specification are subject to be changed without notice. Any latest information please preview
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P. 2
2005/6 VER1.3
MDTIC [ Micon Design Technology Corporation ]
