PC912XDP512F0MPVR datasheet(1080/1348 Pages) FREESCALE

1080 / 1348 page

Chapter 26 4 Kbyte EEPROM Module (S12XEETX4KV2)

MC9S12XDP512 Data Sheet, Rev. 2.21

1082

Freescale Semiconductor

26.3.2.6

EEPROM Status Register (ESTAT)

The ESTAT register deﬁnes the operational status of the module.

CBEIF, PVIOL, and ACCERR are readable and writable, CCIF and BLANK are readable and not writable,

remaining bits read 0 and are not writable in normal mode. FAIL is readable and writable in special mode.

Table 26-6. EEPROM Protection Address Range

EPS[2:0]

Address Offset Range

Protected Size

000

0x0FC0 – 0x0FFF

64 bytes

001

0x0F80 – 0x0FFF

128 bytes

010

0x0F40 – 0x0FFF

192 bytes

011

0x0F00 – 0x0FFF

256 bytes

100

0x0EC0 – 0x0FFF

320 bytes

101

0x0E80 – 0x0FFF

384 bytes

110

0x0E40 – 0x0FFF

448 bytes

111

0x0E00 – 0x0FFF

512 bytes

76543210

CBEIF

CCIF

PVIOL

ACCERR

BLANK

Reset

11000000

= Unimplemented or Reserved

Figure 26-9. EEPROM Status Register (ESTAT — Normal Mode)

76543210

CBEIF

CCIF

PVIOL

ACCERR

BLANK

FAIL

Reset

11000000

= Unimplemented or Reserved

Figure 26-10. EEPROM Status Register (ESTAT — Special Mode)

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