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PIC18F258-E/LSQTP bảng dữ liệu(PDF) 313 Page - Microchip Technology

tên linh kiện PIC18F258-E/LSQTP
Giải thích chi tiết về linh kiện  28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module
PDF  402 Pages
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
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PIC18F258-E/LSQTP bảng dữ liệu(HTML) 313 Page - Microchip Technology

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© 2006 Microchip Technology Inc.
DS41159E-page 311
PIC18FXX8
RCALL
Relative Call
Syntax:
[
label ] RCALL
n
Operands:
-1024
≤ n ≤ 1023
Operation:
(PC) + 2
→ TOS,
(PC) + 2 + 2n
→ PC
Status Affected:
None
Encoding:
1101
1nnn
nnnn
nnnn
Description:
Subroutine call with a jump up to 1K
from the current location. First, return
address (PC + 2) is pushed onto the
stack. Then, add the 2’s complement
number ‘2n’ 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 a
two-cycle instruction.
Words:
1
Cycles:
2
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read literal ‘n’
Push PC to
stack
Process
Data
Write to
PC
No
operation
No
operation
No
operation
No
operation
Example:
HERE
RCALL Jump
Before Instruction
PC =
Address (HERE)
After Instruction
PC =
Address (Jump)
TOS =
Address (HERE + 2)
RESET
Reset
Syntax:
[
label ]
RESET
Operands:
None
Operation:
Reset all registers and flags that are
affected by a MCLR Reset.
Status Affected:
All
Encoding:
0000
0000
1111
1111
Description:
This instruction provides a way to
execute a MCLR Reset in software.
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Start
Reset
No
operation
No
operation
Example:
RESET
After Instruction
Registers =
Reset Value
Flags*
=
Reset Value



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