PC312XDP512F0CFVR datasheet(1083/1348 Pages) FREESCALE

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Chapter 26 4 Kbyte EEPROM Module (S12XEETX4KV2)

MC9S12XDP512 Data Sheet, Rev. 2.21

Freescale Semiconductor

1085

The EADDRHI and EADDRLO registers are the EEPROM address registers.

All EABHI and EABLO bits read 0 and are not writable in normal modes.

All EABHI and EABLO bits are readable and writable in special modes.

The MCU address bit AB0 is not stored in the EADDR registers since the EEPROM block is not byte

addressable.

26.3.2.9

EEPROM Data Registers (EDATA)

The EDATAHI and EDATALO registers are the EEPROM data registers.

All EDHI and EDLO bits read 0 and are not writable in normal modes.

76543210

00000

EABHI

Reset

00000000

= Unimplemented or Reserved

Figure 26-13. EEPROM Address High Register (EADDRHI)

76543210

EABLO

Reset

00000000

= Unimplemented or Reserved

Figure 26-14. EEPROM Address Low Register (EADDRLO)

76543210

EDHI

Reset

00000000

= Unimplemented or Reserved

Figure 26-15. EEPROM Data High Register (EDATAHI)

76543210

EDLO

Reset

00000000

= Unimplemented or Reserved

Figure 26-16. EEPROM Data Low Register (EDATALO)

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