参数资料
型号: PIC18F85K90-I/PTRSL
厂商: Microchip Technology
文件页数: 59/110页
文件大小: 0K
描述: MCU PIC 32K FLASH XLP 80TQFP
产品培训模块: 8-bit PIC® Microcontroller Portfolio
标准包装: 119
系列: PIC® XLP™ 18F
核心处理器: PIC
芯体尺寸: 8-位
速度: 64MHz
连通性: I²C,LIN,SPI,UART/USART
外围设备: 欠压检测/复位,LCD,POR,PWM,WDT
输入/输出数: 69
程序存储器容量: 32KB(16K x 16)
程序存储器类型: 闪存
EEPROM 大小: 1K x 8
RAM 容量: 2K x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
数据转换器: A/D 24x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 80-TQFP
包装: 托盘
2010 Microchip Technology Inc.
Preliminary
DS39964B-page 505
PIC18F47J53 FAMILY
SUBFSR
Subtract Literal from FSR
Syntax:
SUBFSR f, k
Operands:
0
k 63
f
[ 0, 1, 2 ]
Operation:
FSRf – k
FSRf
Status Affected:
None
Encoding:
1110
1001
ffkk
kkkk
Description:
The 6-bit literal ‘k’ is subtracted from
the contents of the FSR specified
by ‘f’.
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read
register ‘f’
Process
Data
Write to
destination
Example:
SUBFSR 2, 23h
Before Instruction
FSR2
=
03FFh
After Instruction
FSR2
=
03DCh
SUBULNK
Subtract Literal from FSR2 and Return
Syntax:
SUBULNK k
Operands:
0
k 63
Operation:
FSR2 – k
FSR2,
(TOS)
PC
Status Affected:
None
Encoding:
1110
1001
11kk
kkkk
Description:
The 6-bit literal ‘k’ is subtracted from the
contents of the FSR2. A RETURN is then
executed by loading the PC with the
TOS.
The instruction takes two cycles to
execute; a NOP is performed during the
second cycle.
This may be thought of as a special case
of the SUBFSR instruction, where f = 3
(binary ‘11’); it operates only on FSR2.
Words:
1
Cycles:
2
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read
register ‘f’
Process
Data
Write to
destination
No
Operation
No
Operation
No
Operation
No
Operation
Example:
SUBULNK 23h
Before Instruction
FSR2
=
03FFh
PC
=
0100h
After Instruction
FSR2
=
03DCh
PC
=
(TOS)
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