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PIC18C658

High-Performance Microcontrollers with CAN Module

Microchip Technology 

PIC18CXX8

FIGURE 1-1: PIC18C658 BLOCK DIAGRAM

Data Bus<8>

21

Address Latch

Program Memory

(32 Kbytes)

Data Latch

21 Table Pointer<21>

8

8

inc/dec logic

20

PCLATU PCLATH

PCU PCH PCL

Program Counter

31 Level Stack

TABLELATCH

16

8

ROMLATCH

Data Latch

Data RAM

( 1.5 K )

Address Latch

12

Address<12>

4

BSR

12

FSR0

FSR1

FSR2

4

Bank0, F

12

Decode

inc/dec

logic

IR

Instruction

Decode &

Control

OSC2/CLKO

OSC1/CLKI

Timing

Generation

Precision

Bandgap

Reference

Power-up

Timer

Oscillator

Start-up Timer

Power-on

Reset

Watchdog

Timer

Brown-out

Reset

8

PRODH PRODL

3

BITOP

8

8 x 8 Multiply

8

WREG

8

8

8

ALU<8>

8

MCLR VDD, VSS

BOR

LVD

Timer0

Timer1

Timer2

Timer3

PORTA

PORTB

PORTC

PORTD

PORTE

PORTF

PORTG

RA0/AN0

RA1/AN1

RA2/AN2/VREF-

RA3/AN3/VREF+

RA4/T0CKI

RA5/AN4/SS/LVDIN

RA6

RB0/INT0

RB1/INT1

RB2/INT2

RB3/INT3

RB7:RB4

RC0/T1OSO/T13CKI

RC1/T1OSI

RC2/CCP1

RC3/SCK/SCL

RC4/SDI/SDA

RC5/SDO

RC6/TX/CK

RC7/RX/DT

RD7/PSP7:RD0/PSP0

RE0/RD

RE1/WR

RE2/CS

RE3

RE4

RE5

RE6

RE7/CCP2

RF7

RF6/AN11:RF0/AN5

RG0/CANTX1

RG1/CANTX2

RG2/CANRX

RG3

RG4

10-bit

ADC

Comparator

CCP1

CCP2

Synchronous

Serial Port

USART

CAN Module

DS30475A-page 10

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 2000 Microchip Technology Inc.

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