ST6246 STMICROELECTRONICS [STMicroelectronics], ST6246 Datasheet - Page 59

• Manufacturer Part Number: ST6246
• Description: 8-BIT OTP/EPROM MCU WITH LCD DRIVER, EEPROM AND A/D CONVERTER
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Opcode Map Summary.The following table contains an opcode map for the instructions used by the ST6
Abbreviation s for Addressing Modes: Legend:
dir
sd
imm
inh
ext
b.d
bt
pcr
ind
HI
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
Direct
Short Direct
Immediate
Inherent
Extended
Bit Direct
Bit Test
Program Counter Relative
Indirect
LOW
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
0000
0
e
e
e
e
e
e
e
e
e
RNZ
e
e
e
e
e
e
e
JRNZ 4
JRNZ 4
JRNZ 4
JRNZ 4
JRNZ 4
JRNZ 4
JRNZ 4
JRNZ 4
JRNZ 4
JRNZ 4
JRNZ 4
JRNZ 4
JRNZ 4
JRNZ 4
JRNZ 4
pcr 2
pcr 2
pcr 2
pcr 2
pcr 2
pcr 2
pcr 2
pcr 2
pcr 2
pcr 2
pcr 2
pcr 2
pcr 2
pcr 2
pcr 2
pcr 2
4
0001
abc
abc
abc
abc
abc
abc
abc
abc
abc
abc
abc
abc
abc
abc
abc
abc
1
CALL 2
CALL 2
CALL 2
CALL 2
CALL 2
CALL 2
CALL 2
CALL 2
CALL 2
CALL 2
CALL 2
CALL 2
CALL 2
CALL 2
CALL 2
CALL 2
ext 1
ext 1
ext 1
ext 1
ext 1
ext 1
ext 1
ext 1
ext 1
ext 1
ext 1
ext 1
ext 1
ext 1
ext 1
ext 1
#
e
b
rr
nn
abc
ee
0010
2
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
Indicates Illegal Instructions
5 Bit Displacement
3 Bit Address
1byte dataspace address
1 byte immediate data
12 bit address
8 bit Displacement
JRNC 5
JRNC 5
JRNC 5
JRNC 5
JRNC 5
JRNC 5
JRNC 5
JRNC 5
JRNC 5
JRNC 5
JRNC 5
JRNC 5
JRNC 5
JRNC 5
JRNC 5
JRNC 5
pcr 3
pcr 3
pcr 3
pcr 3
pcr 3
pcr 3
pcr 3
pcr 3
pcr 3
pcr 3
pcr 3
pcr 3
pcr 3
pcr 3
pcr 3
pcr 3
b0,rr,ee
b0,rr,ee
b4,rr,ee
b4,rr,ee
b2,rr,ee
b2,rr,ee
b6,rr,ee
b6,rr,ee
b1,rr,ee
b1,rr,ee
b5,rr,ee
b5,rr,ee
b3,rr,ee
b3,rr,ee
b7,rr,ee
b7,rr,ee
0011
3
JRR 2
JRS 2
JRR 2
JRS 2
JRR 2
JRS 2
JRR 2
JRS 2
JRR 2
JRS 2
JRR 2
JRS 2
JRR 2
JRS 2
JRR 2
JRS 2
bt 1
bt 1
bt 1
bt 1
bt 1
bt 1
bt 1
bt 1
bt 1
bt 1
bt 1
bt 1
bt 1
bt 1
bt 1
bt 1
e
0100
e
e
e
e
e
e
4
e
e
e
e
e
e
e
e
e
JRZ
JRZ 4
JRZ
JRZ 4
JRZ
JRZ 4
JRZ
JRZ 4
JRZ
JRZ 4
JRZ
JRZ 4
JRZ
JRZ 4
JRZ
JRZ 4
pcr
pcr 1
pcr
pcr 1
pcr
pcr 1
pcr
pcr 1
pcr
pcr 1
pcr
pcr 1
pcr
pcr 1
pcr
pcr 1
Cycle
Operand
Bytes
Addressing Mode
0101
a,w
a,x
a,y
a,v
w
5
#
x
#
#
y
#
#
v
#
#
#
INC 2
INC 2
INC 2
INC 2
LD 2
LD 2
LD 2
LD 2
sd 1
sd 1
sd 1
sd 1
sd 1
sd 1
sd 1
sd 1
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
0110
6
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
JRC 4
JRC
JRC 4
JRC
JRC 4
JRC 4
JRC 4
JRC 4
JRC 4
JRC
JRC 4
JRC 4
JRC 4
JRC 4
JRC 4
JRC 4
2
1
prc 1
prc 2
prc 1
prc 2
prc 1
prc 2
prc 1
prc
prc 1
prc
prc 1
prc 2
prc 1
prc 2
prc 1
prc
e
ST62T46B/E46B
JRC
0111
a,(x)
a,nn
a,(x)
a,nn
a,(x)
a,nn
(x),a
a,(x)
a,nn
a,(x)
a,nn
prc
(x)
(x)
7
#
#
#
ADDI
ANDI
SUBI
ADD
AND
SUB
DEC
imm
imm
imm
imm
imm
CPI
INC
LDI
CP
ind
ind
ind
ind
LD
ind
ind
ind
ind
LD
LOW
Mnemonic
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
0000
0001
0010
0011
0100
0101
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
59/72
395
HI