mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 1084

• Manufacturer Part Number: mc9s12xd256
• Description: Hcs12x Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 26 4 Kbyte EEPROM Module (S12XEETX4KV2)
26.3.2.7
The ECMD register is the EEPROM command register.
All CMDB bits are readable and writable during a command write sequence while bit 7 reads 0 and is not
writable.
26.3.2.8
This register is reserved for factory testing and is not accessible.
All bits read 0 and are not writable.
1084
CMDB[6:0]
EEPROM Address Registers (EADDR)
Reset
Reset
Field
6–0
W
W
R
R
EEPROM Command Bits — Valid EEPROM commands are shown in
than those listed in
EEPROM Command Register (ECMD)
RESERVED3
0
0
0
0
7
7
= Unimplemented or Reserved
= Unimplemented or Reserved
0
0
0
6
6
Figure 26-11. EEPROM Command Register (ECMD)
Table 26-9
Table 26-9. Valid EEPROM Command List
CMDB[6:0]
Table 26-8. ECMD Field Descriptions
MC9S12XDP512 Data Sheet, Rev. 2.17
0x05
0x20
0x40
0x41
0x47
0x60
sets the ACCERR flag in the ESTAT register.
0
0
0
5
5
Figure 26-12. RESERVED3
0
0
0
4
4
Sector Erase Abort
Description
Word Program
Sector Modify
Sector Erase
Erase Verify
Mass Erase
Command
CMDB
0
0
0
3
3
Table
0
0
0
2
2
26-9. Writing any command other
Freescale Semiconductor
0
0
0
1
1
0
0
0
0
0