PIC12C671-04/P Microchip Technology, PIC12C671-04/P Datasheet - Page 78

• Manufacturer Part Number: PIC12C671-04/P
• Description: IC MCU OTP 1KX14 A/D 8DIP
• Manufacturer: Microchip Technology
• Series: PIC® 12Cr

Specifications of PIC12C671-04/P

• Program Memory Type: OTP
• Program Memory Size: 1.75KB (1K x 14)
• Package / Case: 8-DIP (0.300", 7.62mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 5
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Processor Series: PIC12C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 5
• Number Of Timers: 1
• Operating Supply Voltage: 3 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000
• Minimum Operating Temperature: 0 C
• On-chip Adc: 4-ch x 8-bit
• Data Rom Size: 128 B
• Height: 3.3 mm
• Length: 9.27 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 3 V
• Width: 6.35 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: ISPICR1 - ADAPTER IN-CIRCUIT PROGRAMMINGAC124001 - MODULE SKT PROMATEII 8DIP/SOIC
• Eeprom Size: -
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC12C67X
NOP
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
DS30561B-page 78
OPTION
No Operation
[ label ]
None
No operation
None
No operation.
1
1
Load Option Register
[ label ]
None
(W)
None
The contents of the W register are
loaded in the OPTION register.
This instruction is supported for
code compatibility with PIC16C5X
products. Since OPTION is a read-
able/writable register, the user can
directly address it.
1
1
To maintain upward compatibility
with future PIC12C67X products,
do not use this instruction.
NOP
00
00
OPTION
NOP
OPTION
0000
0000
0110
0xx0
0010
0000
RETFIE
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
RETLW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
TABLE
Return from Interrupt
[ label ]
None
TOS
1
None
Return from Interrupt. Stack is
POPed and Top of Stack (TOS) is
loaded in the PC. Interrupts are
enabled by setting Global Inter-
rupt Enable bit, GIE
(INTCON<7>). This is a two cycle
instruction.
1
2
After Interrupt
Return with Literal in W
[ label ]
0
k
TOS
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
•
•
•
ADDWF PC
RETLW k1
RETLW k2
•
•
•
RETLW kn
Before Instruction
After Instruction
RETFIE
00
11
k
GIE
(W);
1999 Microchip Technology Inc.
255
;offset value
PC,
PC
;W now has table value
PC =
GIE =
W
W
RETFIE
RETLW k
0000
01xx
;Begin table
;
; End of table
=
=
;W = offset
TOS
1
0x07
value of k8
0000
kkkk
1001
kkkk