PIC18C242 MICROCHIP [Microchip Technology], PIC18C242 Datasheet - Page 6

• Manufacturer Part Number: PIC18C242
• Description: High-Performance Microcontrollers with 10-Bit A/D
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18CXX2
FIGURE 1-1:
DS39026B-page 6
T1OSO
T1OSI
OSC2/CLKO
OSC1/CLKI
Note 1: Optional multiplexing of CCP2 input/output with RB3 is enabled by selection of configuration bit.
Program Memory
(up to 2M Bytes)
Address Latch
Data Latch
2: The high order bits of the Direct Address for the RAM are from the BSR register (except for the MOVFF
3: Many of the general purpose I/O pins are multiplexed with one or more peripheral module functions. The
CCP1
Timer0
instruction).
multiplexing combinations are device dependent.
16
21
21
PIC18C2X2 BLOCK DIAGRAM
21
TABLELATCH
Generation
Reference
Precision
Voltage
Instruction
Timing
4X PLL
Decode &
Control
Table Pointer <2>
inc/dec logic
Timer1
CCP2
8
20
MCLR
PCLATU
ROMLATCH
Instruction
Register
Start-up Timer
PCU
Brown-out
Power-on
Watchdog
Oscillator
Program Counter
Power-up
31 Level Stack
Reset
Reset
Timer
Timer
8
PCLATH
PCH
V
Synchronous
DD
Serial Port
8
Master
, V
Timer2
PCL
SS
Preliminary
8
Decode
BIT OP
4
BSR
8
3
Address Latch
12
PRODH
8
inc/dec
Address<12>
Data Latch
Data RAM
FSR0
FSR1
FSR2
WREG
logic
Addressable
8 x 8 Multiply
ALU<8>
USART
8
Data Bus<8>
Timer3
8
12
PRODL
4
Bank0, F
(2)
12
8
8
8
PORTB
PORTC
A/D Converter
PORTA
7/99 Microchip Technology Inc.
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI
RA5/AN4/SS/LVDIN
RA6
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
RB0/INT0
RB1/INT1
RB2/INT2
RB3/CCP2
RB7:RB4
(1)
REF
REF
-
+
(1)