PIC14000-20/SS Microchip Technology, PIC14000-20/SS Datasheet - Page 21

• Manufacturer Part Number: PIC14000-20/SS
• Description: IC MCU OTP 4KX14 A/D 28SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 14r

Specifications of PIC14000-20/SS

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C
• Peripherals: POR, Temp Sensor, WDT
• Number Of I /o: 20
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: OTP
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 6 V
• Data Converters: Slope A/D
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SSOP
• Processor Series: PIC14000
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 192 B
• Interface Type: SPI, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 22
• Number Of Timers: 1
• Operating Supply Voltage: 2.7 V to 6 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ICE2000
• Minimum Operating Temperature: 0 C
• On-chip Adc: 14 bit
• For Use With: 309-1025 - ADAPTER 28-SSOP TO 28-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

4.2.2.5
This register contains the individual flag bits for the
Peripheral interrupts (Figure 4-7).
FIGURE 4-7:
bit7
1996 Microchip Technology Inc.
CMIF
R/W
PIR1 REGISTER
—
R
—
PIR1 REGISTER
R
PBIF I
R/W
2
R/W
CIF
RCIF
R/W
ADCIF
R/W
Preliminary
OVFIF
R/W
bit0
Unimplemented. Read as ‘0’
CMIF: Programmable Reference Comparator Interrupt Flag
1 = The comparator output has tripped. This is a
0 = The interrupt did not occur
ADCIF: A/D Capture Interrupt Flag
1 = An A/D capture has occurred.
0 = An A/D capture has not occurred
RCIF:
1 = At least one RC<7:4> input changed.
0 =None of the RC<7:4> inputs have changed
I
1 = A transmission/reception is completed.
0 =Waiting to transmit/receive
PBIF:
1 = The external pushbutton interrupt has occurred
0 =The external pushbutton interrupt did not occur
Unimplemented. Read as ‘0’
OVFIF: A/D counter Overflow Interrupt Flag
1 = An A/D counter overflow has occurred.
0 = An A/D counter overflow has not occurred
2
Note:
CIF:
Register:
Address:
POR value: 00h
level-sensitive interrupt.
Must be cleared in software.
Must be cleared in software.
Must be cleared in software.
Must be cleared in software.
on OSC1/PBTN. Note: This interrupt is not available
in HS mode.
PORTC Interrupt on Change Flag
I
External Pushbutton Interrupt Flag
2
C
These bits will be set by the specified
condition, even if the corresponding
Interrupt Enable bit is cleared (interrupt
disabled) or the GIE bit is cleared (all
interrupts disabled). Before enabling an
interrupt, the user may wish to clear the
corresponding interrupt flag, to ensure that
the program does not immediately branch
to the Peripheral Interrupt service routine.
Port Interrupt Flag
PIR1
0Ch
W: Writable
R:
U:
Readable
Unimplemented,
read as ‘0’
PIC14000
DS40122B-page 21