PIC18F2455-I/SP Microchip Technology Inc., PIC18F2455-I/SP Datasheet - Page 243

• Manufacturer Part Number: PIC18F2455-I/SP
• Description: Microcontroller; 24 KB Flash; 2048 RAM; 256 EEPROM; 24 I/O; 28-Pin-SPDIP
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F2455-I/SP

• A/d Inputs: 10-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 12 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 23
• Interface: I2C/SPI/USART/USB
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin SPDIP
• Programmable Memory: 24K Bytes
• Ram Size: 2K Bytes
• Speed: 48 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

RCALL
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
© 2006 Microchip Technology Inc.
Q Cycle Activity:
Before Instruction
After Instruction
operation
Decode
PC =
PC =
TOS =
No
Q1
Read literal
Push PC to
Address (HERE)
Address (Jump)
Address (HERE + 2)
operation
Relative Call
RCALL
-1024
(PC) + 2
(PC) + 2 + 2n
None
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.
1
2
HERE
stack
1101
No
‘n’
Q2
n
n
RCALL Jump
1023
TOS,
1nnn
operation
Process
Data
No
PC
Q3
nnnn
Write to PC
Advance Information
operation
No
Q4
nnnn
RESET
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
After Instruction
Decode
Registers =
Flags*
PIC18F2450/4450
Q1
=
Reset
RESET
None
Reset all registers and flags that are
affected by a MCLR Reset.
All
This instruction provides a way to
execute a MCLR Reset in software.
1
1
RESET
Reset
Start
0000
Q2
Reset Value
Reset Value
0000
operation
No
Q3
DS39760A-page 241
1111
operation
No
Q4
1111