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PIC18F2320-I/SP 参数 Datasheet PDF下载

PIC18F2320-I/SP图片预览
型号: PIC18F2320-I/SP
PDF下载: 下载PDF文件 查看货源
内容描述: 28 /40/ 44引脚高性能,增强型闪存微控制器与10位A / D和纳瓦技术 [28/40/44-Pin High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology]
分类和应用: 闪存微控制器和处理器外围集成电路光电二极管PC时钟
文件页数/大小: 388 页 / 6899 K
品牌: MICROCHIP [ MICROCHIP ]
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PIC18F2220/2320/4220/4320  
BZ  
Branch if Zero  
[ label ] BZ  
CALL  
Subroutine Call  
Syntax:  
n
Syntax:  
[ label ] CALL k [,s]  
Operands:  
Operation:  
-128 n 127  
Operands:  
0 k 1048575  
s [0,1]  
if Zero bit is ’1’  
(PC) + 2 + 2n PC  
Operation:  
(PC) + 4 TOS,  
k PC<20:1>,  
if s = 1  
Status Affected:  
Encoding:  
None  
1110  
0000  
nnnn  
nnnn  
(W) WS,  
(STATUS) STATUSS,  
(BSR) BSRS  
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.  
Status Affected:  
None  
Encoding:  
1st word (k<7:0>)  
2nd word(k<19:8>)  
1110  
1111  
110s  
k kkk  
kkkk  
kkkk  
7
0
8
k
kkk kkkk  
19  
Description:  
Subroutine call of entire 2 Mbyte  
memory range. First, return  
Words:  
Cycles:  
1
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 regis-  
ters, WS, STATUSS and BSRS. If  
‘s’ = 0, no update occurs (default).  
Then, the 20-bit value ‘k’ is loaded  
into PC<20:1>. CALLis a two-cycle  
instruction.  
1(2)  
Q Cycle Activity:  
If Jump:  
Q1  
Q2  
Q3  
Q4  
Decode  
Read literal  
‘n’  
Process  
Data  
Write to PC  
No  
No  
operation  
No  
operation  
No  
operation  
operation  
Words:  
Cycles:  
2
2
If No Jump:  
Q1  
Q2  
Q3  
Q4  
Decode  
Read literal  
‘n’  
Process  
Data  
No  
operation  
Q Cycle Activity:  
Q1  
Q2  
Q3  
Q4  
Decode  
Read literal Push PC to Read literal  
HERE  
BZ Jump  
Example:  
‘k’<7:0>,  
stack  
‘k’<19:8>,  
Write to PC  
Before Instruction  
PC  
=
address (HERE)  
No  
No  
No  
No  
operation  
operation  
operation  
operation  
After Instruction  
If Zero  
=
=
=
=
1;  
PC  
address (Jump)  
HERE  
CALL THERE,FAST  
Example:  
If Zero  
PC  
0;  
address (HERE+2)  
Before Instruction  
PC  
=
address (HERE)  
After Instruction  
PC  
=
=
=
=
address (THERE)  
TOS  
WS  
address (HERE + 4)  
W
BSR  
STATUS  
BSRS  
STATUSS=  
DS39599C-page 270  
2003 Microchip Technology Inc.  
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