PIC18F452-E/PT Microchip Technology Inc., PIC18F452-E/PT Datasheet - Page 249

• Manufacturer Part Number: PIC18F452-E/PT
• Description: 44 PIN, 32 KB FLASH, 1536 RAM, 34 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F452-E/PT

• A/d Inputs: 8-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 44-pin TQFP
• Programmable Memory: 32K Bytes
• Ram Size: 1.5K 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

22.6
When enabled, the HLVD circuitry continues to operate
during Sleep. If the device voltage crosses the trip
point, the HLVDIF bit will be set and the device will
wake-up from Sleep. Device execution will continue
from the interrupt vector address if interrupts have
been globally enabled.
TABLE 22-1:
 2004 Microchip Technology Inc.
HLVDCON
INTCON
PIR2
PIE2
IPR2
Legend: — = unimplemented, read as ‘0’. Shaded cells are unused by the HLVD module.
Name
Operation During Sleep
VDIRMAG
GIE/GIEH PEIE/GIEL TMR0IE
OSCFIF
OCSFIE
OSCFIP
Bit 7
REGISTERS ASSOCIATED WITH HIGH/LOW-VOLTAGE DETECT MODULE
CMIF
CMIE
CMIP
Bit 6
—
IRVST
Bit 5
—
—
—
PIC18F2420/2520/4420/4520
HLVDEN
INT0IE
EEIF
EEIE
EEIP
Bit 4
HLVDL3
22.7
A device Reset forces all registers to their Reset state.
This forces the HLVD module to be turned off.
BCLIF
BCLIE
BCLIP
RBIE
Bit 3
Effects of a Reset
HLVDL2
TMR0IF
HLVDIE
HLVDIP
HLVDIF
Bit 2
HLVDL1
TMR3IF
TMR3IE
TMR3IP
INT0IF
Bit 1
HLVDL0
CCP2IF
CCP2IE
CCP2IP
DS39631A-page 247
RBIF
Bit 0
on Page
Values
Reset
50
49
52
52
52