MC68HC908AB32 MOTOROLA [Motorola, Inc], MC68HC908AB32 Datasheet - Page 80

• Manufacturer Part Number: MC68HC908AB32
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

EEPROM
5.11.2.1 EEPROM Non-Volatile Register
5.11.3 EEPROM Timebase Divider Register
Technical Data
80
NOTE:
Note: Non-volatile EEPROM register; write by programming.
Address:
EEBP[3:0] — EEPROM Block Protection Bits
The contents of this register is loaded into the EEPROM array
configuration register (EEACR) after a reset.
This register is erased and programmed in the same way as an
EEPROM byte.
The EENVR is factory programmed with $10.
The 16-bit EEPROM timebase divider register consists of two 8-bit
registers: EEDIVH and EEDIVL. The 11-bit value in this register is used
to configure the timebase divider circuit to obtain the 35 s timebase for
EEPROM control.
Reset:
Read:
Write:
These bits prevent blocks of EEPROM array from being programmed
or erased.
Freescale Semiconductor, Inc.
For More Information On This Product,
1 = EEPROM array block is protected
0 = EEPROM array block is unprotected
Figure 5-4. EEPROM Non-Volatile Register (EENVR)
$FE1C
CON3
Bit 7
Block Number (EEBPx)
Go to: www.freescale.com
CON2
Unaffected by reset; $FF when blank; factory programmed $10
6
EEBP0
EEBP1
EEBP2
EEBP3
EEPROM
CON1
5
EEPRTCT
4
EEBP3
Address Range
3
$0800–$087F
$0880–$08FF
$0900–$097F
$0980–$09FF
MC68HC908AB32
EEBP2
2
EEBP1
1
MOTOROLA
—
Rev. 1.0
EEBP0
Bit 0