PIC16C554-04I/SO Microchip Technology, PIC16C554-04I/SO Datasheet - Page 64

• Manufacturer Part Number: PIC16C554-04I/SO
• Description: IC MCU OTP 512X14 18SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C554-04I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 13
• Program Memory Size: 896B (512 x 14)
• Program Memory Type: OTP
• Ram Size: 80 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 18-SOIC (7.5mm Width)
• Processor Series: PIC16C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 80 B
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 13
• Number Of Timers: 8
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

PIC16C55X
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
DS40143D-page 62
RETFIE
RETLW
TABLE
[ label ]
None
TOS → PC,
1 → GIE
None
Return from Interrupt. Stack is POPed
and Top of Stack (TOS) is loaded in
the PC. Interrupts are enabled by
setting Global Interrupt Enable bit,
GIE (INTCON<7>). This is a two-cycle
instruction.
1
2
After Interrupt
[ label ]
0 ≤ k ≤ 255
k → (W);
TOS → PC
None
The W register is loaded with the eight
bit literal 'k'. The program counter is
loaded from the top of the stack (the
return address). This is a two-cycle
instruction.
1
2
CALL TABLE;W contains table
•
value
•
•
ADDWF PC
RETLW k1
RETLW k2
•
•
•
RETLW kn
Before Instruction
After Instruction
Return from Interrupt
00
RETFIE
Return with Literal in W
11
PC
GIE =
W
W
RETFIE
RETLW k
=
=
=
0000
01xx
;offset value
;W now has table
;W = offset
;Begin table
;
; End of table
TOS
1
0x07
value of k8
0000
kkkk
1001
kkkk
Preliminary
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
RETURN
RLF
[ label ]
None
TOS → PC
None
Return from subroutine. The stack is
POPed and the top of the stack (TOS)
is loaded into the program counter.
This is a two-cycle instruction.
1
2
After Interrupt
[ label ] RLF
0 ≤ f ≤ 127
d ∈ [0,1]
See description below
The contents of register 'f' are rotated
one bit to the left through the Carry
Flag. If 'd' is 0 the result is placed in
the W register. If 'd' is 1 the result is
stored back in register 'f'
1
1
Before Instruction
After Instruction
C
Return from Subroutine
00
RETURN
Rotate Left f through Carry
00
RLF
 2002 Microchip Technology Inc.
PC
REG1
C
REG1
W
C
C
RETURN
0000
=
1101
REG1,0
= 1110 0110
= 0
= 1110 0110
= 1100 1100
= 1
TOS
f,d
Register f
0000
dfff
.
1000
ffff