sh6620a SinoWealth Micro-Electronics Corp. Ltd, sh6620a Datasheet - Page 13

• Manufacturer Part Number: sh6620a
• Description: Mask 4-bit Microcontroller
• Manufacturer: SinoWealth Micro-Electronics Corp. Ltd

Control Instruction
Where,
BAZ X
BNZ X
BC X
BNC X
BA0 X
BA1 X
BA2 X
BA3 X
CALL X
RTNW H; L
RTNI
HALT
STOP
JMP X
TJMP
NOP
Mnemonic
-AC
PC
AC
CY
Mx
ST
p
10010 xxxx xxx xxxx
10000 xxxx xxx xxxx
10011 xxxx xxx xxxx
10001 xxxx xxx xxxx
10100 xxxx xxx xxxx
10101 xxxx xxx xxxx
10110 xxxx xxx xxxx
10111 xxxx xxx xxxx
11000 xxxx xxx xxxx
11010 1000 000 0000
11011 1000 000 0000
1110p xxxx xxx xxxx
11110 1111 111 1111
11111 1111 111 1111
11010 000h hhh llll
11011 0000 000 0000
Instruction Code
Program counter
Accumulator
Complement of accumulator
Carry flag
Data memory
ROM page = 0
Stack
PC
PC
PC
PC
PC
PC
PC
PC
ST
PC
PC
AC← llll
CY; PC ← ST
PC
PC
No Operation
13
← CY; PC + 1
← X if AC = 0
← X if AC ≠ 0
← X if CY = 1
← X if CY ≠ 1
← X if AC (0) = 1
← X if AC (1) = 1
← X if AC (2) = 1
← X if AC (3) = 1
← X (Not including p)
←ST; TBR ← hhhh;
← (PC11-PC8) (TBR) (AC)
← X (Include p)
Function
TBR
bbb
⊕
&
I
|
Immediate data
Logical exclusive OR
Logical OR
Logical AND
RAM bank = 000
Table Branch Register
Flag Change
SH6620A
CY