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| PIC16C717_13 Datasheet, PDF (6/224 Pages) Microchip Technology – 18/20-Pin, 8-Bit CMOS Microcontrollers with 10/12-Bit A/D | |||
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PIC16C717/770/771
FIGURE 1-2:
PIC16C770/771 BLOCK DIAGRAM
EPROM
Program
Memory(2)
Program
Bus
14
13
Program Counter
8 Level Stack
(13-bit)
Program Memory
Read (PMR)
Instruction reg
Direct Addr 7
Internal
4 MHz, 37 kHz
and ER mode
Instruction
Decode &
Control
OSC1/CLKIN
OSC2/CLKOUT
Timing
Generation
VDD, VSS
8
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Brown-out
Reset
Data Bus
8
RAM
File
Registers
256 x 8
RAM
9 Addr(1)
Addr MUX
Indirect
8 Addr
FSR reg
STATUS reg
3
MUX
ALU
8
W reg
PORTA
PORTB
RA0/AN0
RA1/AN1/LVDIN
RA2/AN2/VREF-/VRL
RA3/AN3/VREF+/VRH
RA4/T0CKI
RA5/MCLR/VPP
RA6/OSC2/CLKOUT
RA7/OSC1/CLKIN
RB0/AN4/INT
RB1/AN5/SS
RB2/SCK/SCL
RB3/CCP1/P1A
RB4/SDI/SDA
RB5/SDO/P1B
RB6/T1OSO/T1CKI/P1C
RB7/T1OSI/P1D
AVDD
AVSS
12-bit
ADC
Bandgap
Reference
Low-voltage
Detect
Timer0
Timer1
Timer2
Enhanced CCP
(ECCP)
Master
Synchronous
Serial Port (MSSP)
Note 1: Higher order bits are from the STATUS register.
2: Program memory for PIC16C770 is 2K x 14. Program memory for PIC16C771 is 4K x 14.
DS41120C-page 6
ï£ 1999-2013 Microchip Technology Inc.
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