参数资料
型号: MSM80C51F-XXXGS
厂商: OKI ELECTRIC INDUSTRY CO LTD
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP44
封装: 0.80 MM PITCH, PLASTIC, QFP-44
文件页数: 14/39页
文件大小: 355K
代理商: MSM80C51F-XXXGS
21/38
Semiconductor
MSM80C31F/80C51F
Instruction Set Details (continued)
D6 D5 D4 D3
D1
Bytes Cycles
Type
Mnemonic
Instruction code
Description
D7
D2
D0
Branch
instructions
01
10
0
00
JZ rel
22
(PC) ¨ (PC)+2
IF
(A) = 0
THEN
(PC) ¨ (PC)+relative offset
R7 R6 R5 R4 R3 R2 R1 R0
00
0
00
NOP
11
(PC) ¨ (PC)+1
01
11
0
00
JNZ rel
22
(PC) ¨ (PC)+2
IF
(A) π 0
THEN
(PC) ¨ (PC)+relative offset
R7 R6 R5 R4 R3 R2 R1 R0
01
00
0
00
JC rel
22
(PC) ¨ (PC)+2
IF
(C) = 1
THEN
(PC) ¨ (PC)+relative offset
R7 R6 R5 R4 R3 R2 R1 R0
01
0
00
JNC rel
22
(PC) ¨ (PC)+2
IF
(C) = 0
THEN
(PC) ¨ (PC)+relative offset
R7 R6 R5 R4 R3 R2 R1 R0
00
10
0
00
JB bit, rel
32
(PC) ¨ (PC)+3
IF
(bit address) = 1
THEN
(PC) ¨ (PC)+relative offset
b7 b6 b5 b4 b3 b2 b1 b0
R7 R6 R5 R4 R3 R2 R1 R0
00
11
0
00
JNB bit, rel
32
(PC) ¨ (PC)+3
IF
(bit address) = 0
THEN
(PC) ¨ (PC)+relative offset
b7 b6 b5 b4 b3 b2 b1 b0
R7 R6 R5 R4 R3 R2 R1 R0
00
01
0
00
JBC bit, rel
32
(PC) ¨ (PC)+3
IF
(bit address) = 1
THEN
(bit address) ¨ 0
(PC) ¨ (PC)+relative offset
b7 b6 b5 b4 b3 b2 b1 b0
R7 R6 R5 R4 R3 R2 R1 R0
11
10
0
r0
MOVX A, @Rr
12
(A) ¨ ((Rr)) EXTERNAL RAM
11
10
0
00
MOVX A,
@DPTR
12
(A) ¨ ((DPTR)) EXTERNAL RAM
11
0
1
r0
MOVX @Rr, A
12
(Rr) ¨ (A) EXTERNAL RAM
11
0
00
MOVX
@DPTR, A
12
((DPTP)) ¨ (A) EXTERNAL RAM
External
memory
instructions
Other
instructions
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