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PIC18F87J10 Datasheet, PDF (11/394 Pages) Microchip Technology – 64/80-Pin High-Performance, 1-Mbit Flash Microcontrollers with nanoWatt Technology
PIC18F87J10 FAMILY
FIGURE 1-2:
PIC18F8XJ10/8XJ15 (80-PIN) BLOCK DIAGRAM
Data Bus<8>
Table Pointer<21>
inc/dec logic
21 20
88
PCLATU PCLATH
PCU PCH PCL
Program Counter
Address Latch
Program Memory
(128 Kbytes)
Data Latch
31 Level Stack
STKPTR
8
Table Latch
Data Latch
Data Memory
(3.9 Kbytes)
Address Latch
12
Data Address<12>
4
12
4
BSR
FSR0
Access
Bank
FSR1
FSR2
12
inc/dec
logic
Instruction Bus <16>
AD15:AD0, A19:A16
(Multiplexed with PORTD,
PORTE and PORTH)
ROM Latch
IR
Address
Decode
8
State Machine
Control Signals
Instruction
Decode &
Control
OSC2/CLKO Timing
OSC1/CLKI Generation
INTRC
Oscillator
ENVREG
Precision
Band Gap
Reference
Voltage
Regulator
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Brown-out
Reset(2)
PRODH PRODL
3
BITOP
8
8 x 8 Multiply
8
W
8
8
8
8
ALU<8>
8
VDDCORE/VCAP
VDD,VSS MCLR
PORTA
RA0:RA5(1)
PORTB
RB0:RB7(1)
PORTC
RC0:RC7(1)
PORTD
RD0:RD7(1)
PORTE
RE0:RE7(1)
PORTF
RF1:RF7(1)
PORTG
RG0:RG4(1)
PORTH
RH0:RH7(1)
PORTJ
RJ0:RJ7(1)
ADC
10-bit
Timer0
Timer1
Timer2
Timer3
Timer4 Comparators
ECCP1
ECCP2 ECCP3
CCP4
CCP5 EUSART1 EUSART2 MSSP1 MSSP2
Note 1: See Table 1-4 for I/O port pin descriptions.
2: BOR functionality is provided when the on-board voltage regulator is enabled.
 2005 Microchip Technology Inc.
Advance Information
DS39663A-page 9