PIC18F4431-I/P Microchip Technology Inc., PIC18F4431-I/P Datasheet - Page 100
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PIC18F4431-I/P
Manufacturer Part Number
PIC18F4431-I/P
Description
Microcontroller; 16 KB Flash; 768 RAM; 256 EEPROM; 36 I/O; 40-Pin-PDIP
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F4431-IP.pdf
(396 pages)
Specifications of PIC18F4431-I/P
A/d Inputs
9-Channel, 10-Bit
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
36
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
40-pin PDIP
Programmable Memory
16K Bytes
Ram Size
768 Bytes
Speed
40 MHz
Timers
1-8-bit, 3-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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PIC18F2331/2431/4331/4431
REGISTER 9-6:
DS39616B-page 98
bit 7-5
bit 4
bit 3
bit 2
bit 1
bit 0
Unimplemented: Read as ‘0’
PTIF: PWM Time Base Interrupt bit
1 = PWM Time Base matched the value in PTPER register. Interrupt is issued according to the
0 = PWM Time Base has not matched the value in PTPER register.
IC3DRIF: IC3 Interrupt Flag/Direction Change Interrupt Flag bit
IC3 Enabled (CAP3CON<3:0>)
1 = TMR5 value was captured by the active edge on CAP3 input (must be cleared in software).
0 = TMR5 capture has not occurred.
QEI Enabled (QEIM<2:0>)
1 = Direction of rotation has changed (must be cleared in software).
0 = Direction of rotation has not changed.
IC2QEIF: IC2 Interrupt Flag/QEI Interrupt Flag bit
IC2 Enabled (CAP2CON<3:0>)
1 = TMR5 value was captured by the active edge on CAP2 input (must be cleared in software).
0 = TMR5 capture has not occurred.
QEI Enabled (QEIM<2:0>)
1 = The QEI position counter has reached the MAXCNT value or the index pulse, INDX, has
0 = The QEI position counter has not reached the MAXCNT value or the index pulse has not
IC1IF: IC1 Interrupt Flag bit
IC1 Enabled (CAP1CON<3:0>)
1 = TMR5 value was captured by the active edge on CAP1 input (must be cleared in software).
0 = TMR5 capture has not occurred.
QEI Enabled (QEIM<2:0>) and Velocity Measurement mode enabled
1 = Timer5 value was captured by the active velocity edge (based on PHA or PHB input).
0 = Timer5 value was not captured by the active velocity edge.
TMR5IF: Timer5 Interrupt Flag bit
1 = Timer5 time base matched the PR5 value (must be cleared in software).
0 = Timer5 time base did not match the PR5 value.
bit 7
Legend:
R = Readable bit
-n = Value at POR
PIR3: PERIPHERAL INTERRUPT FLAG REGISTER 3
U-0
—
postscaler settings. PTIF must be cleared in software.
been detected. Depends on the QEI operating mode enabled. Must be cleared in software.
been detected.
CAP1REN bit must be set in CAP1CON register. IC1IF must be cleared in software.
(VELM = 0 in QEICON Register)
U-0
—
U-0
Preliminary
—
W = Writable bit
‘1’ = bit is set
R/W-0
PTIF
IC3DRIF
R/W-0
U = Unimplemented bit, read as ‘0’
‘0’ = bit is cleared
IC2QEIF
R/W-0
2003 Microchip Technology Inc.
R/W-0
IC1IF
x = bit is unknown
TMR5IF
R/W-0
bit 0
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