PIC18F1220-I/SO Microchip Technology Inc., PIC18F1220-I/SO Datasheet - Page 223
PIC18F1220-I/SO
Manufacturer Part Number
PIC18F1220-I/SO
Description
Microcontroller; 4 KB Flash; 256 RAM; 256 EEPROM; 16 I/O; 18-Pin-SOIC
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F1220-ISO.pdf
(310 pages)
Specifications of PIC18F1220-I/SO
A/d Inputs
7-Channel, 10-Bit
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
16
Interface
USART
Memory Type
Flash
Number Of Bits
8
Package Type
18-pin SOIC
Programmable Memory
4K Bytes
Ram Size
256 Bytes
Speed
20 MHz
Timers
1-8-bit, 3-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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RCALL
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
2004 Microchip Technology Inc.
Q Cycle Activity:
Before Instruction
After Instruction
operation
Decode
PC =
PC =
TOS =
Q1
No
Address (HERE)
Address (Jump)
Address (HERE + 2)
Read literal
Push PC to
operation
Relative Call
[ label ] 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
Q2
No
‘n’
n
RCALL
1nnn
1023
TOS,
operation
Process
Data
Q3
No
PC
Jump
n
nnnn
Write to PC
operation
Q4
No
nnnn
RESET
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
After Instruction
Decode
Registers =
Flags*
Q1
PIC18F1220/1320
=
Reset
[ label ]
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
RESET
0000
operation
Q3
No
DS39605C-page 221
1111
operation
Q4
No
1111
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