參數(shù)資料
型號： pic16c621a
廠商： Microchip Technology Inc.
英文描述： EPROM-Based 8-Bit CMOS Microcontroller(8位CMOS微控制器)
中文描述： 存儲器為基礎的8位CMOS微控制器（8位的CMOS微控制器）
文件頁數(shù)： 66/112頁
文件大?。?/td> 1205K
代理商： PIC16C621A
PIC16C62X(A)
DS30235F-page 66
Preliminary
1997 Microchip Technology Inc.
CLRWDT
Syntax:
Operands:
Operation:
Clear Watchdog Timer
[ label CLRWDT
None
00h
→
WDT
0
→
WDT prescaler,
1
→
TO
1
→
PD
TO, PD
Status Affected:
Encoding:
Description:
00
0000
0110
0100
CLRWDT
instruction resets the
Watchdog Timer. It also resets the
prescaler of the WDT. Status bits TO
and PD are set.
1
1
Words:
Cycles:
Example
CLRWDT
Before Instruction
WDT counter =
After Instruction
WDT counter =
WDT prescaler=
TO
PD
0x00
0
1
1
=
=
COMF
Syntax:
Operands:
Complement f
[ label COMF f,d
0
≤
f
≤
127
d
∈
[0,1]
(f)
→
(dest)
Z
Operation:
Status Affected:
Encoding:
Description:
00
1001
dfff
ffff
The contents of register 'f' are
complemented. If 'd' is 0 the result is
stored in W. If 'd' is 1 the result is
stored back in register 'f'.
1
1
Words:
Cycles:
Example
COMF
REG1,0
Before Instruction
REG1
=
0x13
After Instruction
REG1
W
=
=
0x13
0xEC
DECF
Syntax:
Operands:
Decrement f
[ label DECF f,d
0
≤
f
≤
127
d
∈
[0,1]
(f) - 1
→
(dest)
Z
Operation:
Status Affected:
Encoding:
Description:
00
0011
dfff
ffff
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'
.
1
1
Words:
Cycles:
Example
DECF CNT, 1
Before Instruction
CNT
Z
=
=
0x01
0
After Instruction
CNT
Z
=
=
0x00
1
DECFSZ
Syntax:
Operands:
Decrement f, Skip if 0
[ label DECFSZ f,d
0
≤
f
≤
127
d
∈
[0,1]
(f) - 1
→
(dest); skip if result = 0
None
Operation:
Status Affected:
Encoding:
Description:
00
1011
dfff
ffff
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. A
NOP is executed instead making it a
two-cycle instruction.
1
1(2)
Words:
Cycles:
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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相關代理商/技術參數(shù)
參數(shù)描述
PIC16C621A/JW 功能描述:8位微控制器 -MCU 1.75KB 96 RAM 13 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
PIC16C621A-04/P 功能描述:8位微控制器 -MCU 1.75KB 96 RAM 13 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
PIC16C621A-04/P 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 16C621 DIP18
PIC16C621A-04/SO 功能描述:8位微控制器 -MCU 1.75KB 96 RAM 13 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
PIC16C621A-04/SS 功能描述:8位微控制器 -MCU 1.75KB 96 RAM 13 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
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