参数资料
型号: PIC16F57T-I/SO
厂商: Microchip Technology
文件页数: 43/88页
文件大小: 0K
描述: IC MCU FLASH 2KX12 28SOIC
产品培训模块: Asynchronous Stimulus
标准包装: 1,600
系列: PIC® 16F
核心处理器: PIC
芯体尺寸: 8-位
速度: 20MHz
外围设备: POR,WDT
输入/输出数: 20
程序存储器容量: 3KB(2K x 12)
程序存储器类型: 闪存
RAM 容量: 72 x 8
电压 - 电源 (Vcc/Vdd): 2 V ~ 5.5 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
包装: 带卷 (TR)
PIC16F5X
DS41213D-page 46
2007 Microchip Technology Inc.
COMF
Complement f
Syntax:
[ label ] COMF
f, d
Operands:
0
≤ f ≤ 31
d
∈ [0,1]
Operation:
(f)
→ (dest)
Status Affected:
Z
Encoding:
0010
01df
ffff
Description:
The contents of register ‘f’ are
complemented. If ‘d’ is ‘0’, the
result is stored in the W register. If
‘d’ is ‘1’, the result is stored back in
register ‘f’.
Words:
1
Cycles:
1
Example:
COMF
REG1,0
Before Instruction
REG1
=
0x13
After Instruction
REG1
=
0x13
W=
0xEC
DECF
Decrement f
Syntax:
[ label ] DECF f, d
Operands:
0
≤ f ≤ 31
d
∈ [0,1]
Operation:
(f) – 1
→ (dest)
Status Affected:
Z
Encoding:
0000
11df
ffff
Description:
Decrement register ‘f’. If ‘d’ is ‘0’,
the result is stored in the W
register. If ‘d’ is ‘1’, the result is
stored back in register ‘f’.
Words:
1
Cycles:
1
Example:
DECF
CNT,
1
Before Instruction
CNT
=
0x01
Z=
0
After Instruction
CNT
=
0x00
Z=
1
DECFSZ
Decrement f, Skip if 0
Syntax:
[ label ] DECFSZ f, d
Operands:
0
≤ f ≤ 31
d
∈ [0,1]
Operation:
(f) – 1
→ d; skip if result = 0
Status Affected:
None
Encoding:
0010
11df
ffff
Description:
The contents of register ‘f’ are
decremented. If ‘d’ is ‘0’, the result
is placed in the W register. If ‘d’ is
‘1’. the result is placed back in
register ‘f’. If the result is ‘0’, the
next instruction, which is already
fetched, is discarded and a NOP is
executed instead making it a
two-cycle instruction.
Words:
1
Cycles:
1(2)
Example:
HERE
DECFSZ
CNT, 1
GOTO
LOOP
CONTINUE
Before Instruction
PC
=
address(HERE)
After Instruction
CNT
=
CNT - 1;
if CNT
=
0,
PC
=
address (CONTINUE);
if CNT
0,
PC
=
address (HERE+1)
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