Datasheet

PIC16F627A/628A/648A

13.8 Data EEPROM Operation During

Code-Protect

When the device is code-protected, the CPU is able to

read and write data to the data EEPROM.

TABLE 13-1: REGISTERS/BITS ASSOCIATED WITH DATA EEPROM

Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

Value on

Power-on

Reset

Value on all

other

Resets

9Ah EEDATA EEPROM Data Register xxxx xxxx uuuu uuuu

9Bh EEADR EEPROM Address Register xxxx xxxx uuuu uuuu

9Ch EECON1

— — — — WRERR WREN WR RD ---- x000 ---- q000

9Dh EECON2

(1)

EEPROM Control Register 2 ---- ---- ---- ----

Legend: x = unknown, u = unchanged, - = unimplemented read as ‘0’, q = value depends upon condition.

Shaded cells are not used by data EEPROM.

Note 1: EECON2 is not a physical register.