MC68HC812A4 Datasheet, PDF (114/342 Pages) Motorola, Inc – 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include

EEPROM
7.4 EEPROM Control Registers
This section describes the EEPROM control registers.
7.4.1 EEPROM Module Configuration Register
Address: $00F0
Bit 7
6
5
4
3
2
1
Bit 0
Read:
1
1
1
1
1
EESWAI PROTLCK EERC
Write:
Reset: 1
1
1
1
1
1
0
0
Figure 7-2. EEPROM Module Configuration Register (EEMCR)
Read: Anytime
Write: Varies from bit to bit
EESWAI — EEPROM Stops in Wait Mode Bit
0 = Module is not affected during wait mode.
1 = Module ceases to be clocked during wait mode.
This bit should be cleared if the wait mode vectors are mapped in the
EEPROM array.
PROTLCK — Block Protect Write Lock Bit
0 = Block protect bits and bulk erase protection bit can be written.
1 = Block protect bits are locked.
Write once in normal modes (SMODN = 1). Set and clear anytime in
special modes (SMODN = 0).
EERC — EEPROM Charge Pump Clock Bit
0 = System clock is used as clock source for the internal charge
pump; internal RC oscillator is stopped.
1 = Internal RC oscillator drives the charge pump; RC oscillator is
required when the system bus clock is lower than f_PROG.
Write anytime
MC68HC812A4 — Rev. 3.0
114
EEPROM
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