XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 556

• Manufacturer Part Number: XC908AS60ACFU
• Description: MC68HC908AZ60A, MC68HC908AS60A Hcmos Microcontroller Unit Technical Data
• Manufacturer: Motorola Semiconductor Products

MC68HC908AS60 and MC68HC908AZ60
29.2.3.3 EEPROM AUTO programming & erasing
29.2.4 Config-2
29.2.5 Keyboard Interrupt
29.2.6 Current Consumption
Technical Data
556
The second major change to the EEPROM is the inclusion in the
EEPROM control registers (EECRx) of an AUTO function using
previously unused bit 1 of these registers.
The AUTO function enables the logic of the MCU to automatically use
the optimum programming or erasing time for the EEPROM. If using
AUTO the user does not need to wait for the normal minimum specified
programming or erasing time. After setting the EEPGM bit as normal the
user just has to poll that bit again, waiting for the MCU to clear it
indicating that programming or erasing is complete.
Config-2 register $FE09 has 2 new bits activated. Bit 3 is now a silicon
hard set bit, which identifies this new A-suffix silicon (1) from the
previous non-A suffix silicon (0). Bit 7 is now an EEPROM time base
divider clock select bit selecting the reference clock source for the
EEPROM time base divider module (refer to EEPROM changes
described above).
The keyboard module is now a feature of the MC68HC908AS60A in 64-
qfp package whereas previously it was only a feature of the AZ device.
Vector addresses $FFD2 and $FFD3 are now in the AS memory map in
support of this option.
Current consumption will be significantly lower in many applications.
Although maximum specifications are still very dependent upon
fabrication process variation and configuration of the MCU in the target
application, additional values have been added to the I
to provide typical current consumption data. Please see
Specifications
MC68HC908AS60 and MC68HC908AZ60
for further details.
MC68HC908AZ60A — Rev 2.0
DD
Electrical
specifications
MOTOROLA