S912XHY128F0VLM Datasheet, PDF (592/802 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

256 KByte Flash Module (S12XFTMR256K1V1)
(as evidenced by the Memory Controller returning CCIF to 1). Some commands return information to the
FCCOB register array.
The generic format for the FCCOB parameter fields in NVM command mode is shown in Table 18-22.
The return values are available for reading after the CCIF flag in the FSTAT register has been returned to
1 by the Memory Controller. Writes to the unimplemented parameter fields (CCOBIX = 110 and CCOBIX
= 111) are ignored with reads from these fields returning 0x0000.
Table 18-22 shows the generic Flash command format. The high byte of the first word in the CCOB array
contains the command code, followed by the parameters for this specific Flash command. For details on
the FCCOB settings required by each command, see the Flash command descriptions in Section 18.4.2.
Table 18-22. FCCOB - NVM Command Mode (Typical Usage)
CCOBIX[2:0]
000
001
010
011
100
101
Byte
HI
LO
HI
LO
HI
LO
HI
LO
HI
LO
HI
LO
FCCOB Parameter Fields (NVM Command Mode)
FCMD[7:0] defining Flash command
0, Global address [22:16]
Global address [15:8]
Global address [7:0]
Data 0 [15:8]
Data 0 [7:0]
Data 1 [15:8]
Data 1 [7:0]
Data 2 [15:8]
Data 2 [7:0]
Data 3 [15:8]
Data 3 [7:0]
18.3.1.12 Flash Reserved0 Register (FRSV0)
This Flash register is reserved for factory testing.
Offset Module Base + 0x000C
7
6
5
4
3
2
1
0
R
0
0
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 18-17. Flash Reserved0 Register (FRSV0)
All bits in the FRSV0 register read 0 and are not writable.
MC9S12XHY-Family Reference Manual, Rev. 1.01
592
Freescale Semiconductor