MC9S12XD256MAL Datasheet, PDF (1082/1348 Pages) Freescale Semiconductor, Inc – Freescale’s Scalable Controller Area Network

Chapter 26 4 Kbyte EEPROM Module (S12XEETX4KV2)
26.3.2.7 EEPROM Command Register (ECMD)
The ECMD register is the EEPROM command register.
7
6
5
4
3
2
1
0
R
0
W
CMDB
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 26-11. EEPROM Command Register (ECMD)
All CMDB bits are readable and writable during a command write sequence while bit 7 reads 0 and is not
writable.
Table 26-8. ECMD Field Descriptions
Field
Description
6–0
EEPROM Command Bits — Valid EEPROM commands are shown in Table 26-9. Writing any command other
CMDB[6:0] than those listed in Table 26-9 sets the ACCERR flag in the ESTAT register.
Table 26-9. Valid EEPROM Command List
CMDB[6:0]
0x05
0x20
0x40
0x41
0x47
0x60
Command
Erase Verify
Word Program
Sector Erase
Mass Erase
Sector Erase Abort
Sector Modify
26.3.2.8 RESERVED3
This register is reserved for factory testing and is not accessible.
7
6
5
4
3
2
R
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 26-12. RESERVED3
All bits read 0 and are not writable.
EEPROM Address Registers (EADDR)
1084
MC9S12XDP512 Data Sheet, Rev. 2.21
1
0
0
0
0
0
Freescale Semiconductor