em78p257 ELAN Microelectronics Corp, em78p257 Datasheet - Page 68

• Manufacturer Part Number: em78p257
• Description: 8-bit Microcontroller
• Manufacturer: ELAN Microelectronics Corp

This specification is subject to change without prior notice.
0 0000 0000 0001
0 0000 0000 0010
0 0000 0000 0 011
0 0000 0000 0100
0 0000 0000 rrrr
0 0000 0001 0000
0 0000 0001 0001
0 0000 0001 0010
0 0000 0001 0011
0 0000 0001 0100
0 0000 0001 rrrr
0 0000 0010 0000
0 0000 01rr rrrr
0 0000 1000 0000
0 0000 11rr rrrr
0 0001 00rr rrrr
0 0001 01rr rrrr
0 0001 10rr rrrr
0 0001 11rr rrrr
0 0010 00rr rrrr
0 0010 01rr rrrr
0 0010 10rr rrrr
0 0010 11rr rrrr
0 0011 00rr rrrr
0 0011 01rr rrrr
0 0011 10rr rrrr
0 0011 11rr rrrr
0 0100 00rr rrrr
0 0100 01rr rrrr
0 0100 10rr rrrr
0 0100 11rr rrrr
0 0101 00rr rrrr
0 0101 01rr rrrr
0 0101 10rr rrrr
0 0101 11rr rrrr
0 0110 00rr rrrr
0 0110 01rr rrrr
0 0110 10rr rrrr
0 0110 11rr rrrr
0 0111 00rr rrrr
0 0111 01rr rrrr
0 0111 10rr rrrr
0 0111 11rr rrrr
0 100b bbrr rrrr
0 101b bbrr rrrr
0 110b bbrr rrrr
0 111b bbrr rrrr
1 00kk kkkk kkkk
0001
0002
0003
0004
0010
0011
0012
0013
0014
0020
0080
000r
001r
1kkk
00rr
00rr
01rr
01rr
01rr
01rr
02rr
02rr
02rr
02rr
03rr
03rr
03rr
03rr
04rr
04rr
04rr
04rr
05rr
05rr
05rr
05rr
06rr
06rr
06rr
06rr
07rr
07rr
07rr
07rr
0xxx
0xxx
0xxx
0xxx
SWAPA R
MOV R,R
MOV R,A
SUB A,R
SUB R,A
AND A,R
AND R,A
XOR A,R
XOR R,A
ADD A,R
ADD R,A
MOV A,R
CONTW
DECA R
COMA R
RRCA R
SWAP R
JBC R,b
CONTR
RLCA R
JBS R,b
DJZA R
OR A,R
OR R,A
COM R
INCA R
RRC R
BC R,b
CALL k
CLR R
DEC R
RLC R
BS R,b
WDTC
IOW R
IOR R
INC R
DJZ R
SLEP
CLRA
JZA R
RETI
JZ R
DAA
DISI
RET
TBL
ENI
[Top of Stack]
0
68
R+1
R+1
R-1
[Top of Stack]
R-1
R(0)
R(7)
R(0)
R(7)
Bit8,9 do not clear
Decimal Adjust A
Disable Interrupt
R(0-3)
R(0-3)
WDT, Stop oscillator
Enable Interrupt
R(4-7)
(Page, k)
R(n)
R(n)
R(n)
R(n)
if R(b)=0, skip
if R(b)=1, skip
PC+1
R2+A
A VR
A VR
A
CONT
A
A & R
A
A + R
A
IOCR
A & R
A + R
0
R+1
R+1
0
1
R-A
R-1
R-A
R-1
/R
R
/R
A
0
R
R, skip if zero
0
A, skip if zero
R, skip if zero
A, skip if zero
C, C
C, C
C, C
C, C
PC, Enable Interrupt
R
R
CONT
IOCR
WDT
R(n+1),
R(b)
R(b)
R(n-1),
A(n+1),
A(n-1),
R
R
A
R
A(4-7),
A
A(0-3)
R(4-7)
R
A
[SP],
R
R
R2
A
A
R
A
R
R
R
A
A
A
A
A
R
A
PC
R(7)
R(0)
A(7)
A(0)
PC
None <Note1>
None <Note1>
None <Note2>
None <Note3>
EM78P257
Z,C,DC
Z,C,DC
Z,C,DC
Z,C,DC
Z,C,DC
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
T,P
T,P
07.27.2004 (V1.4)
OTP ROM
C
C
C
C
C
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z