參數(shù)資料
型號： PIC18F87K90T-I/PTRSL
廠商： Microchip Technology
文件頁數(shù)： 22/110頁
文件大?。?/td> 0K
描述： MCU 8BIT 128K FLASH 80-TQFP
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 大小： 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 469
PIC18F47J53 FAMILY
BNC
Branch if Not Carry
Syntax:
BNC
n
Operands:
-128
n 127
Operation:
if Carry bit is ‘0’,
(PC) + 2 + 2n
PC
Status Affected:
None
Encoding:
1110
0011
nnnn
Description:
If the Carry bit is ‘0’, 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
BNC
Jump
Before Instruction
PC
=
address (HERE)
After Instruction
If Carry
=
0;
PC
=
address (Jump)
If Carry
=
1;
PC
=
address (HERE + 2)
BNN
Branch if Not Negative
Syntax:
BNN
n
Operands:
-128
n 127
Operation:
if Negative bit is ‘0’,
(PC) + 2 + 2n
PC
Status Affected:
None
Encoding:
1110
0111
nnnn
Description:
If the Negative bit is ‘0’, 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
BNN
Jump
Before Instruction
PC
=
address (HERE)
After Instruction
If Negative
=
0;
PC
=
address (Jump)
If Negative
=
1;
PC
=
address (HERE + 2)
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