PIC12F1822T-I/SL 查看數據表（PDF） - Microchip Technology

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PIC12F1822T-I/SL

8/14-Pin Flash Microcontrollers with nanoWatt XLP Technology

Microchip Technology 

PIC12F/LF1822/16F/LF1823

REGISTER 11-6: EECON2: EEPROM CONTROL 2 REGISTER

W-0/0

bit 7

W-0/0

W-0/0

W-0/0

W-0/0

EEPROM Control Register 2

W-0/0

W-0/0

W-0/0

bit 0

Legend:

R = Readable bit

S = Bit can only be set

‘1’ = Bit is set

W = Writable bit

x = Bit is unknown

‘0’ = Bit is cleared

U = Unimplemented bit, read as ‘0’

-n/n = Value at POR and BOR/Value at all other Resets

bit 7-0

Data EEPROM Unlock Pattern bits

To unlock writes, a 55h must be written first, followed by an AAh, before setting the WR bit of the

EECON1 register. The value written to this register is used to unlock the writes. There are specific

timing requirements on these writes. Refer to Section 11.2.2 “Writing to the Data EEPROM

Memory” for more information.

TABLE 11-3: SUMMARY OF REGISTERS ASSOCIATED WITH DATA EEPROM

Name Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Register

on Page

EECON1 EEPGD CFGS LWLO FREE WRERR WREN

WR

RD

115

EECON2

EEPROM Control Register 2 (not a physical register)

116*

EEADRL

EEADRL<7:0>

114

EEADRH

—

EEADRH<6:0

114

EEDATL

EEDATL<7:0>

114

EEDATH

—

—

EEDATH<5:0>

114

INTCON GIE

PEIE TMR0IE INTE

IOCIE TMR0IF INTF

IOCIF

89

PIE2

OSFIE C2IE(1)

C1IE

EEIE BCL1IE

—

—

—

91

PIR2

OSFIF C2IF(1)

C1IF

EEIF BCL1IF

—

—

—

93

Legend: — = unimplemented location, read as ‘0’. Shaded cells are not used by Data EEPROM module.

* Page provides register information.

Note 1: PIC16F/LF1823 only.

DS41413A-page 116

Preliminary

 2010 Microchip Technology Inc.

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