Features; Eeprom I/O Register Summary - Motorola MC68HC908AB32 Technical Data Manual

EEPROM

5.3 Features

Addr. Register Name
EEDIV Non-volatile
$FE10 Register High
(EEDIVHNVR)*
EEDIV Non-volatile
$FE11 Register Low
(EEDIVLNVR)*
EE Divider Register High
$FE1A
(EEDIVH)
EE Divider Register Low
$FE1B
(EEDIVL)
EEPROM Non-volatile
$FE1C Register
(EENVR)*
EEPROM Control Register
$FE1D
(EECR)
EEPROM Array
$FE1F Configuration Register
(EEACR)
* Non-volatile EEPROM register; write by programming.
Technical Data
70
Features of the EEPROM include the following:
• 512 bytes non-volatile memory
• Byte, block or bulk erasable operations
• Non-volatile EEPROM configuration and block protection options
• On-chip charge pump for programming/erasing
• Security option
Bit 7 6
Read:
R
EEDIVSECD
Write:
Reset:
Read:
EEDIV7 EEDIV6
Write:
Reset:
Read:
R
EEDIVSECD
Write:
Reset:
Read:
EEDIV7 EEDIV6
Write:
Reset:
Read:
CON3 CON2
Write:
Reset: Unaffected by reset; $FF when blank; factory programmed $10
Read: 0
EEDUM
Write:
Reset: 0 0
Read: CON3 CON2
Write:
Reset:
= Unimplemented
Figure 5-1. EEPROM I/O Register Summary
EEPROM
5 4 3
R R R
Unaffected by reset; $FF when blank
EEDIV5 EEDIV4 EEDIV3
Unaffected by reset; $FF when blank
R R R
Contents of EEDIVHNVR ($FE10)
EEDIV5 EEDIV4 EEDIV3
Contents of EEDIVLNVR ($FE11)
CON1 EEPRTCT EEBP3
EEOFF EERAS1 EERAS0
0 0 0
CON1 EEPRTCT EEBP3
Contents of EENVR ($FE1C)
R
2 1 Bit 0
EEDIV10 EEDIV9 EEDIV8
EEDIV2 EEDIV1 EEDIV0
EEDIV10 EEDIV9 EEDIV8
EEDIV2 EEDIV1 EEDIV0
EEBP2 EEBP1 EEBP0
EELAT AUTO EEPGM
0 0 0
EEBP2 EEBP1 EEBP0
= Reserved
MC68HC908AB32 Rev. 1.0
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MOTOROLA