PIC18F452-E/L Microchip Technology, PIC18F452-E/L Datasheet - Page 84

• Manufacturer Part Number: PIC18F452-E/L
• Description: IC MCU CMOS 40MHZ 16K FLSH44PLCC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F452-E/L

• Core Size: 8-Bit
• Program Memory Size: 32KB (16K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 34
• 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: 44-PLCC
• Controller Family/series: PIC18
• No. Of I/o's: 34
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 1.5KB
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1536 B
• Interface Type: MSSP, SPI, I2C, PSP, USART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136, DM163022
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT44L2 - SOCKET TRAN ICE 44PLCCDVA16XL441 - ADAPTER DEVICE ICE 44PLCC
• Lead Free Status / Rohs Status: Details

PIC18FXX2
8.4
The IPR registers contain the individual priority bits for
the peripheral interrupts. Due to the number of periph-
eral interrupt sources, there are two Peripheral Inter-
rupt Priority Registers (IPR1, IPR2). The operation of
the priority bits requires that the Interrupt Priority
Enable (IPEN) bit be set.
REGISTER 8-8:
DS39564C-page 82
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
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
Note 1: This bit is reserved on PIC18F2X2 devices; always maintain this bit set.
Legend:
R = Readable bit
- n = Value at POR
PSPIP
R/W-1
(1)
(1)
: Parallel Slave Port Read/Write Interrupt Priority bit
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
CCP1IP
R/W-1
© 2006 Microchip Technology Inc.
x = Bit is unknown
TMR2IP
R/W-1
TMR1IP
R/W-1
bit 0