S912XHZ512F1VAG Datasheet, PDF (186/978 Pages) Freescale Semiconductor, Inc – Covers MC9S12XHZ384, MC9S12XHZ256

Chapter 4 4 Kbyte EEPROM Module (S12XEETX4KV2)
All bits read 0 and are not writable.
EEPROM Address Registers (EADDR)
The EADDRHI and EADDRLO registers are the EEPROM address registers.
Module Base + 0x0008
7
6
5
4
3
2
1
0
R
0
0
0
0
0
EABHI
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 4-13. EEPROM Address High Register (EADDRHI)
Module Base + 0x0009
7
6
5
4
3
2
1
0
R
EABLO
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 4-14. EEPROM Address Low Register (EADDRLO)
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.
4.3.2.9 EEPROM Data Registers (EDATA)
The EDATAHI and EDATALO registers are the EEPROM data registers.
Module Base + 0x000A
7
6
5
4
3
2
1
0
R
EDHI
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 4-15. EEPROM Data High Register (EDATAHI)
MC9S12XHZ512 Data Sheet, Rev. 1.06
186
Freescale Semiconductor