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參數資料
型號: W741C260
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-BIT Microcontroller(多次可編程4位的微控制器)
中文描述: 4-BIT, MROM, 4.19 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數: 86/92頁
文件大小: 488K
代理商: W741C260
W741C260
- 86 -
Instruction Set Table 2, continued
SKB3 R
If bit 3 of R is equal to 1 then skip
Machine Code:
Machine Cycle:
Operation:
Description:
1
0
0
0
1
0
1
0
1
R6
R5
R4
R3
R2
R1
R0
1
PC
(PC) + 2; if R.3 = "1"
If bit 3 of R is equal to 1, the program counter is incremented by 2 and a
skip is produced. If bit 3 of R is not equal to 1, the program counter (PC) is
incremented.
STOP
Enter the STOP mode
Machine Code:
Machine Cycle:
Operation:
Description:
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
1
STOP oscillator
Device enters STOP mode. When the falling edge signal of RC port is
accepted, the
μ
C will wake up and execute the next instruction.
SUB R, ACC
Subtract ACC from R
Machine Code:
Machine Cycle:
Operation:
Description:
Flag Affected:
0
0
1
1
0
1
0
0
R6
R5
R4
R3
R2
R1
R0
0
1
ACC
(R) - (ACC)
The contents of the ACC are binary subtracted from the contents of the
data memory location addressed by R6 to R0 and the result is loaded into
the ACC.
CF & ZF
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