PIC18F458-E/P Microchip Technology, PIC18F458-E/P Datasheet - Page 90

• Manufacturer Part Number: PIC18F458-E/P
• Description: IC MCU FLASH 16KX16 W/CAN 40 DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F458-E/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1536 B
• Interface Type: SPI, I2C, USART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DV164136, DM163011
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.4
The Interrupt Priority (IPR) registers contain the individ-
ual priority bits for the peripheral interrupts. Due to the
number of peripheral interrupt sources, there are three
Peripheral Interrupt Priority registers (IPR1, IPR2 and
IPR3). The operation of the priority bits requires that
the Interrupt Priority Enable bit (IPEN) be set.
REGISTER 8-10:
DS41159E-page 88
PIC18FXX8
IPR Registers
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
IPR1: PERIPHERAL INTERRUPT PRIORITY REGISTER 1
bit 7
PSPIP: Parallel Slave Port Read/Write Interrupt Priority bit
1 = High priority
0 = Low priority
ADIP: A/D Converter Interrupt Priority bit
1 = High priority
0 = Low priority
RCIP: USART Receive Interrupt Priority bit
1 = High priority
0 = Low priority
TXIP: USART Transmit Interrupt Priority bit
1 = High priority
0 = Low priority
SSPIP: Master Synchronous Serial Port Interrupt Priority bit
1 = High priority
0 = Low priority
CCP1IP: CCP1 Interrupt Priority bit
1 = High priority
0 = Low priority
TMR2IP: TMR2 to PR2 Match Interrupt Priority bit
1 = High priority
0 = Low priority
TMR1IP: TMR1 Overflow Interrupt Priority bit
1 = High priority
0 = Low priority
Legend:
R = Readable bit
-n = Value at POR
PSPIP
R/W-1
Note 1: This bit is only available on PIC18F4X8 devices. For PIC18F2X8 devices, this bit
(1)
is unimplemented and reads as ‘0’.
R/W-1
ADIP
R/W-1
RCIP
W = Writable bit
‘1’ = Bit is set
R/W-1
TXIP
SSPIP
R/W-1
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
(1)
CCP1IP
R/W-1
© 2006 Microchip Technology Inc.
x = Bit is unknown
TMR2IP
R/W-1
TMR1IP
R/W-1
bit 0