PIC18F452-I/P Microchip Technology Inc., PIC18F452-I/P Datasheet - Page 212

• Manufacturer Part Number: PIC18F452-I/P
• Description: 40 PIN, 32 KB FLASH, 1536 RAM, 34 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F452-I/P

• 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: 40-pin PDIP
• 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

PIC18F2420/2520/4420/4520
FIGURE 18-1:
FIGURE 18-2:
DS39631A-page 210
Note: The ABD sequence requires the EUSART module to be configured in Asynchronous mode and WUE = 0.
BRG Value
BRG Clock
ABDEN bit
(Interrupt)
SPBRGH
RCIF bit
RCREG
ABDOVF bit
SPBRG
BRG Clock
BRG Value
RX pin
ABDEN bit
Read
RX pin
Set by User
XXXXh
XXXXh
AUTOMATIC BAUD RATE CALCULATION
BRG OVERFLOW SEQUENCE
0000h
Start
0000h
Bit 0
XXXXh
XXXXh
Edge #1
Preliminary
Start
Bit 1
Bit 2
Edge #2
Bit 0
Bit 3
Bit 4
Edge #3
Bit 5
Bit 6
Edge #4
 2004 Microchip Technology Inc.
FFFFh
Bit 7
Stop Bit
Edge #5
Auto-Cleared
0000h
001Ch
1Ch
00h