参数资料
型号: PIC18F67K90T-I/PTRSL
厂商: Microchip Technology
文件页数: 27/110页
文件大小: 0K
描述: MCU 8BIT 128K FLASH 64-TQFP
标准包装: 1,200
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: 53
程序存储器容量: 128KB(64K x 16)
程序存储器类型: 闪存
EEPROM 大小: 1K x 8
RAM 容量: 4K x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
数据转换器: A/D 16x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 64-TQFP
包装: 带卷 (TR)
PIC18F47J53 FAMILY
DS39964B-page 474
Preliminary
2010 Microchip Technology Inc.
BZ
Branch if Zero
Syntax:
BZ
n
Operands:
-128
n 127
Operation:
if Zero bit is ‘1’,
(PC) + 2 + 2n
PC
Status Affected:
None
Encoding:
1110
0000
nnnn
Description:
If the Zero 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
BZ
Jump
Before Instruction
PC
=
address (HERE)
After Instruction
If Zero
=
1;
PC
=
address (Jump)
If Zero
=
0;
PC
=
address (HERE + 2)
CALL
Subroutine Call
Syntax:
CALL k {,s}
Operands:
0
k 1048575
s
[0,1]
Operation:
(PC) + 4
TOS,
k
PC<20:1>;
if s = 1
(W)
WS,
(STATUS)
STATUSS,
(BSR)
BSRS
Status Affected:
None
Encoding:
1st word (k<7:0>)
2nd word(k<19:8>)
1110
1111
110s
k19kkk
k7kkk
kkkk
kkkk0
kkkk8
Description:
Subroutine call of entire 2-Mbyte
memory range. First, return address
(PC+ 4) is pushed onto the return stack.
If ‘s’ = 1, the W, STATUS and BSR
registers are also pushed into their
respective shadow registers, WS,
STATUSS and BSRS. If ‘s’ = 0, no
update occurs (default). Then, the
20-bit value ‘k’ is loaded into PC<20:1>.
CALL is a two-cycle instruction.
Words:
2
Cycles:
2
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read literal
‘k’<7:0>,
Push PC to
stack
Read literal
’k’<19:8>,
Write to PC
No
operation
No
operation
No
operation
No
operation
Example:
HERE
CALL
THERE,1
Before Instruction
PC
=
address (HERE)
After Instruction
PC
=
address (THERE)
TOS
=
address (HERE + 4)
WS
=
W
BSRS
=
BSR
STATUSS =
STATUS
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