MDT1010 Datasheet, PDF (6/20 Pages) Micon Design Technology Corporation – 8-bit micro-controller

7. Reset Condition for all Registers
MDT1010
Register Address Power-On Reset /MCLR or WDT Reset
CPIO A
1111 1111
1111 1111
CPIO B
1111 1111
1111 1111
TMR
--11 1111
--11 1111
IAR
00h
RTCC
01h
xxxx xxxx
uuuu uuuu
PC
02h
1111 1111
1111 1111
STATUS
03h
0001 1xxx
000# #uuu
MSR
04h
111x xxxx
111u uuuu
PORT A
05h
- - - - xxxx
- - - - uuuu
PORT B
06h
xxxx xxxx
uuuu uuuu
Note : u unchanged, x unknown, - unimplemented, read as “0”
# value depends on the condition of the following table
Condition
/MCLR reset (not during SLEEP)
/MCLR reset during SLEEP
WDT reset (not during SLEEP)
WDT reset during SLEEP
Status: bit 4
u
1
0
0
Status: bit 3
u
0
1
0
8. Instruction Set
Instruction Code
Mnemonic
Operands
Function
010000 00000000 NOP
No operation
010000 00000001 CLRWT
Clear Watchdog timer
010000 00000010 SLEEP
Sleep mode
010000 00000011
010000 00000100
010000 00000rrr
010001 1rrrrrrr
011000 trrrrrrr
111010 iiiiiiii
TMODE
RET
CPIO R
STWR R
LDR R, t
LDWI I
Load W to TMODE register
Return
Control I/O port register
Store W to register
Load register
Load immediate to W
Operating
None
0 WT
0 WT stop
OSC
W TMODE
Stack PC
W CPIO r
WR
Rt
IW
Status
TF, PF
TF, PF
None
None
None
None
Z
None
This specification are subject to be changed without notice. Any latest information please preview
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P.6
2005/6 Ver1.4