PIC18F6621-I/PT Microchip Technology Inc., PIC18F6621-I/PT Datasheet - Page 306

• Manufacturer Part Number: PIC18F6621-I/PT
• Description: 64 PIN, 64 KB FLASH, 3840 RAM, 52 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F6621-I/PT

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 1024 Bytes
• Input Output: 54
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 64-pin TQFP
• Programmable Memory: 64K Bytes
• Ram Size: 3.8K Bytes
• Speed: 40 MHz
• Timers: 2-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F6525/6621/8525/8621
POP
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
DS39612B-page 304
Q Cycle Activity:
Before Instruction
After Instruction
Decode
TOS
Stack (1 level down)=
TOS
PC
Q1
operation
Pop Top of Return Stack
[ label ]
None
(TOS) → bit bucket
None
The TOS value is pulled off the return
stack and is discarded. The TOS value
then becomes the previous value that
was pushed onto the return stack.
This instruction is provided to enable
the user to properly manage the return
stack to incorporate a software stack.
1
1
POP
GOTO
0000
No
Q2
=
=
=
POP
0000
NEW
POP TOS
0031A2h
014332h
014332h
NEW
value
Q3
0000
operation
No
Q4
0110
PUSH
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
Before Instruction
After Instruction
Decode
TOS
PC
PC
TOS
Stack (1 level down)=
Q1
PC + 2 onto
return stack
Push Top of Return Stack
[ label ]
None
(PC + 2) → TOS
None
The PC + 2 is pushed onto the top of
the return stack. The previous TOS
value is pushed down on the stack.
This instruction allows implementing a
software stack by modifying TOS and
then pushing it onto the return stack.
1
1
PUSH
PUSH
0000
Q2
 2005 Microchip Technology Inc.
=
=
=
=
PUSH
0000
operation
00345Ah
000124h
000126h
000126h
00345Ah
No
Q3
0000
operation
No
Q4
0101