PIC16C620 Microchip Technology, PIC16C620 Datasheet - Page 46

• Manufacturer Part Number: PIC16C620
• Description: EPROM-Based 8-Bit CMOS Microcontroller
• Manufacturer: Microchip Technology

PIC16C62X
9.1
The configuration bits can be programmed (read as '0')
or left unprogrammed (read as '1') to select various
device configurations. These bits are mapped in
program memory location 2007h.
FIGURE 9-1:
DS30235G-page 46
bit13
bit 13-8,
bit 7:
bit 6:
bit 3:
bit 2:
bit 1-0:
Note 1: Enabling Brown-out Reset automatically enables Power-up Timer (PWRT) regardless of the value of bit PWRTE. We
CP1 CP0
5-4:
2: All of the CP1:CP0 pairs have to be given the same value to enable the code protection scheme listed.
3: Unprogrammed parts default the Power-up Timer disabled.
Configuration Bits
(2)
CP<1:0>: Code protection bit pairs
Code protection for 2K program memory
11 = Program memory code protection off
10 = 0400h-07FFh code protected
01 = 0200h-07FFh code protected
00 = 0000h-07FFh code protected
Code protection for 1K program memory
11 = Program memory code protection off
10 =Program memory code protection on
01 = 0200h-03FFh code protected
00 = 0000h-03FFh code protected
Code protection for 0.5K program memory
11 = Program memory code protection off
10 = Program memory code protection off
01 = Program memory code protection off
00 = 0000h-01FFh code protected
Unimplemented: Read as '1'
BOREN: Brown-out Reset Enable bit
1 = BOR enabled
0 = BOR disabled
PWRTE: Power-up Timer Enable bit
1 = PWRT disabled
0 = PWRT enabled
WDTE: Watchdog Timer Enable bit
1 = WDT enabled
0 = WDT disabled
FOSC1:FOSC0: Oscillator Selection bits
11 = RC oscillator
10 = HS oscillator
01 = XT oscillator
00 = LP oscillator
recommend that whenever Brown-out Reset is enabled, the Power-up Timer is also enabled.
CP1
CONFIGURATION WORD
CP0
(2)
CP1
CP0
(2)
(2)
— BOREN
(1, 3)
(1)
(1)
Preliminary
CP1
CP0
(2)
The user will note that address 2007h is beyond
the user program memory space. In fact, it belongs
to the special test/configuration
(2000h – 3FFFh), which can be accessed only during
programming.
PWRTE
(1)
WDTE F0SC1
F0SC0
1998 Microchip Technology Inc.
bit0
CONFIG
REGISTER:
memory
Address
2007h
space