mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 1207

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

All FDATAHI and FDATALO bits are readable but are not writable. At the completion of a data compress
operation, the resulting 16-bit signature is stored in the FDATA registers. The data compression signature
is readable in the FDATA registers until a new command write sequence is started.
29.3.2.11 RESERVED1
This register is reserved for factory testing and is not accessible.
All bits read 0 and are not writable.
29.3.2.12 RESERVED2
This register is reserved for factory testing and is not accessible.
All bits read 0 and are not writable.
29.3.2.13 RESERVED3
This register is reserved for factory testing and is not accessible.
Freescale Semiconductor
Reset
Reset
Reset
W
W
W
R
R
R
0
0
0
0
0
7
7
7
= Unimplemented or Reserved
= Unimplemented or Reserved
= Unimplemented or Reserved
0
0
0
0
0
6
6
6
Figure 29-17. Flash Data Low Register (FDATALO)
MC9S12XDP512 Data Sheet, Rev. 2.17
0
0
0
0
0
5
5
5
Figure 29-18. RESERVED1
Figure 29-19. RESERVED2
0
0
0
0
0
4
4
4
FDATALO
Chapter 29 128 Kbyte Flash Module (S12XFTX128K1V1)
0
0
0
0
0
3
3
3
0
0
0
0
0
2
2
2
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
1207