參數(shù)資料
型號： PIC18F87K90T-I/PT
廠商： Microchip Technology
文件頁數(shù)： 26/110頁
文件大小： 0K
描述： IC MCU 8BIT 128KB FLASH 80TQFP
標準包裝： 1,200
系列： PIC® XLP™ 18F
核心處理器： PIC
芯體尺寸： 8-位
速度： 64MHz
連通性： I²C，LIN，SPI，UART/USART
外圍設(shè)備： 欠壓檢測/復(fù)位，LCD，POR，PWM，WDT
輸入/輸出數(shù)： 69
程序存儲器容量： 128KB（64K x 16）
程序存儲器類型： 閃存
EEPROM 大?。?/td> 1K x 8
RAM 容量： 4K x 8
電壓 - 電源 (Vcc/Vdd)： 1.8 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 24x12b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 80-TQFP
包裝： 帶卷 (TR)
2010 Microchip Technology Inc.
Preliminary
DS39964B-page 473
PIC18F47J53 FAMILY
BTG
Bit Toggle f
Syntax:
BTG f, b {,a}
Operands:
0
f 255
0
b < 7
a
[0,1]
Operation:
(f<b>)
f<b>
Status Affected:
None
Encoding:
0111
bbba
ffff
Description:
Bit ‘b’ in data memory location ‘f’ is
inverted.
If ‘a(chǎn)’ is ‘0’, the Access Bank is selected.
If ‘a(chǎn)’ is ‘1’, the BSR is used to select the
GPR bank (default).
If ‘a(chǎn)’ is ‘0’ and the extended instruction
set is enabled, this instruction operates
in Indexed Literal Offset Addressing
mode whenever f
95 (5Fh). See
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read
register ‘f’
Process
Data
Write
register ‘f’
Example:
BTG
PORTC,
4, 0
Before Instruction:
PORTC =
0111 0101 [75h]
After Instruction:
PORTC =
0110 0101 [65h]
BOV
Branch if Overflow
Syntax:
BOV
n
Operands:
-128
n 127
Operation:
if Overflow bit is ‘1’,
(PC) + 2 + 2n
PC
Status Affected:
None
Encoding:
1110
0100
nnnn
Description:
If the Overflow bit is ‘1’, then the
program will branch.
The 2’s complement number ‘2n’ is
added to the PC. Since the PC will have
incremented to fetch the next
instruction, the new address will be
PC + 2 + 2n. This instruction is then a
two-cycle instruction.
Words:
1
Cycles:
1(2)
Q Cycle Activity:
If Jump:
Q1
Q2
Q3
Q4
Decode
Read literal
‘n’
Process
Data
Write to PC
No
operation
No
operation
No
operation
No
operation
If No Jump:
Q1
Q2
Q3
Q4
Decode
Read literal
‘n’
Process
Data
No
operation
Example:
HERE
BOV
Jump
Before Instruction
PC
=
address (HERE)
After Instruction
If Overflow
=
1;
PC
=
address (Jump)
If Overflow
=
0;
PC
=
address (HERE + 2)
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