PIC12C671-04/P Microchip Technology, PIC12C671-04/P Datasheet - Page 528

• 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

PICmicro MID-RANGE MCU FAMILY
29.3
29.3.1
29.3.2
29.3.3
DS31029A-page 29-6
Special Function Registers as Source/Destination
STATUS Register as Destination
PCL as Source or Destination
Bit Manipulation
The Section 29. Instruction Set’s orthogonal instruction set allows read and write of all file regis-
ters, including special function registers. Some special situations the user should be aware of are
explained in the following subsections:
If an instruction writes to the STATUS register, the Z, C, DC and OV bits may be set or cleared
as a result of the instruction and overwrite the original data bits written. For example, executing
CLRF STATUS will clear register STATUS, and then set the Z bit leaving 0000 0100b in the reg-
ister.
Read, write or read-modify-write on PCL may have the following results:
Read PC:
Write PCL:
Read-Modify-Write:
Where PCH = program counter high byte (not an addressable register), PCLATH = Program
counter high holding latch, dest = destination, W register or register file f.
All bit manipulation instructions will first read the entire register, operate on the selected bit and
then write the result back (read-modify-write (R-M-W)) the specified register. The user should
keep this in mind when operating on some special function registers, such as ports.
Note:
Status bits that are manipulated by the device (including the interrupt flag bits) are
set or cleared in the Q1 cycle. So there is no issue with executing R-M-W instructions
on registers which contain these bits.
PCL
PCLATH
8-bit destination value
PCL
PCLATH
8-bit result
ALU operand
dest;
PCH;
PCH;
PCL
PCLATH does not change;
PCL
1997 Microchip Technology Inc.