mc68hc08az60 Freescale Semiconductor, Inc, mc68hc08az60 Datasheet - Page 423

• Manufacturer Part Number: mc68hc08az60
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

EEDIV Non-volatile Registers
3-appA
MOTOROLA
Address:
Address:
Reset:
Reset:
Read:
Read:
Write:
Write:
Figure 5. EEPROM-2 Divider High Non-volatile Register (EEDIVHNVR)
Figure 6. EEPROM-2 Divider Low Non-volatile Register (EEDIVLNVR)
EEDIVSECD
EEDIV7
$FE10
$FE11
Bit 7
Bit 7
PV
PV
EEDIVSECD — EEPROM Divider Security Disable
EEDIV10–EEDIV0 — EEPROM timebase prescalar.
EEDIV6
Freescale Semiconductor, Inc.
This bit enables/disables the security feature of the EEDIV registers.
When EEDIV security feature is enabled, the state of the registers
EEDIVH and EEDIVL are locked (inclucding this EEDIVSECD bit).
Also the EEDIVHNVR and EEDIVLNVR non-volatile memory
registers are protected from being erased/programmed.
These prescalar bits store the value of EEDIV which is used as the
divisor to derive a timebase of 35 s from the selected reference clock
source for the EEPROM related internal timer and circuits.
EEDIV0–10 are readable at any time. They are writable when EELAT
is not set and EEDIVSECD is not cleared.
PV
PV
6
6
For More Information On This Product,
1 = EEDIV security feature disabled
0 = EEDIV security feature enabled
Appendix A: Future EEPROM Registers
= Unimplemented
= Unimplemented
Go to: www.freescale.com
EEDIV5
PV
PV
5
5
EEDIV4
PV
PV
4
4
EEDIV3
PV
PV
3
3
Appendix A: Future EEPROM Registers
EEDIV10
EEDIV2
PV
PV
2
2
EEDIV Non-volatile Registers
MC68HC08AZ60 — Rev 1.0
EEDIV9
EEDIV1
PV
PV
1
1
EEDIV8
EEDIV0
Bit 0
Bit 0
PV
PV
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