MC68HC908AZ32ACFU MOTOROLA [Motorola, Inc], MC68HC908AZ32ACFU Datasheet - Page 91

• Manufacturer Part Number: MC68HC908AZ32ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

5.6.5 EEPROM Timebase Divider Non-Volatile Register
68HC908AZ32A — Rev 0.0
MOTOROLA
NOTE:
Address:
The EEDIV value is calculated by the following formula:
Where the result inside the bracket is rounded down to the nearest
integer value
For example, if the reference frequency is 4.9152MHz, the EEDIV value
is 172
Programming/erasing the EEPROM with an improper EEDIV value may
result in data lost and reduce endurance of the EEPROM device.
The 16-bit EEPROM timebase divider non-volatile register consists of
two 8-bit registers: EEDIVHNVR and EEDIVLNVR. The contents of
these two registers are respectively loaded into the EEPROM timebase
divider registers, EEDIVH and EEDIVL, after a reset.
These two registers are erased and programmed in the same way as an
EEPROM byte.
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
EEDIV= INT[Reference Frequency(Hz) x 35 x10
Figure 5-7. EEPROM Divider Non-Volatile Register High
For More Information On This Product,
EEDIVSECD
$FE10
Bit 7
R
Go to: www.freescale.com
R
6
= Reserved
EEPROM
R
5
Unaffected by reset; $FF when blank
(EEDIVHNVR))
R
4
R
3
EEPROM Register Descriptions
EEDIV10
2
-6
+0.5]
Advance Information
EEDIV9
1
EEPROM
EEDIV8
Bit 0
91