MC68HC908AZ60A_13 Datasheet, PDF (95/414 Pages) Freescale Semiconductor, Inc – Microcontrollers

EEPROM-2 Register Descriptions
7.5.3 EEPROM-2 Nonvolatile Register
The contents of this register is loaded into the EEPROM-2 array configuration register (EE2ACR) after a
reset.
This register is erased and programmed in the same way as an EEPROM byte. (See 7.5.1 EEPROM-2
Control Register for individual bit descriptions).
Address: $FF7C
Bit 7
6
5
4
3
Read:
UNUSED UNUSED UNUSED EEPRTCT EEBP3
Write:
Reset:
PV
PV = Programmed value or 1 in the erased state.
2
EEBP2
1
EEBP1
Bit 0
EEBP0
Figure 7-4. EEPROM-2 Nonvolatile Register (EE2NVR)
NOTE
The EE2NVR will leave the factory programmed with $F0 such that the full
array is available and unprotected.
7.5.4 EEPROM-2 Timebase Divider Register
The 16-bit EEPROM-2 timebase divider register consists of two 8-bit registers: EE2DIVH and EE2DIVL.
The 11-bit value in this register is used to configure the timebase divider circuit to obtain the 35 μs
timebase for EEPROM-2 control.
These two read/write registers are respectively loaded with the contents of the EEPROM-2 timebase
divider nonvolatile registers (EE2DIVHNVR and EE2DIVLNVR) after a reset.
Address:
Read:
Write:
Reset:
$FF7A
Bit 7
EEDIVS-
ECD
6
5
4
3
2
0
0
0
0
EEDIV10
Contents of EE2DIVHNVR ($FF70); Bits[6:3] = 0
= Unimplemented
1
EEDIV9
Figure 7-5. EE2DIV Divider High Register (EE2DIVH)
Bit 0
EEDIV8
Address: $FF7B
Bit 7
6
5
4
3
2
1
Read:
Write:
Reset:
EEDIV7
EEDIV6
EEDIV5 EEDIV4 EEDIV3 EEDIV2
Contents of EE2DIVLNVR ($FF71)
EEDIV1
Figure 7-6. EE2DIV Divider Low Register (EE2DIVL)
Bit 0
EEDIV0
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
Freescale Semiconductor
95