Техническая Спецификация для Freescale Semiconductor Tower System Eval Kit for MC9S12GN32 TWR-S12GN32-KIT TWR-S12GN32-KIT
Модели
TWR-S12GN32-KIT
16 KByte Flash Module (S12FTMRG16K1V1)
MC9S12G Family Reference Manual, Rev.1.23
Freescale Semiconductor
799
the command’s execution by writing a 1 to the CCIF bit in the FSTAT register (a 1 written by the user clears
the CCIF command completion flag to 0). When the user clears the CCIF bit in the FSTAT register all
FCCOB parameter fields are locked and cannot be changed by the user until the command completes (as
evidenced by the Memory Controller returning CCIF to 1). Some commands return information to the
FCCOB register array.
the CCIF command completion flag to 0). When the user clears the CCIF bit in the FSTAT register all
FCCOB parameter fields are locked and cannot be changed by the user until the command completes (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
. 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.
the Memory Controller. Writes to the unimplemented parameter fields (CCOBIX = 110 and CCOBIX =
111) are ignored with reads from these fields returning 0x0000.
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
the FCCOB settings required by each command, see the Flash command descriptions in
24.3.2.12 Flash Reserved1 Register (FRSV1)
This Flash register is reserved for factory testing.
All bits in the FRSV1 register read 0 and are not writable.
Table 24-22. FCCOB - NVM Command Mode (Typical Usage)
CCOBIX[2:0]
Byte
FCCOB Parameter Fields (NVM Command Mode)
000
HI
FCMD[7:0] defining Flash command
LO
6’h0, Global address [17:16]
001
HI
Global address [15:8]
LO
Global address [7:0]
010
HI
Data 0 [15:8]
LO
Data 0 [7:0]
011
HI
Data 1 [15:8]
LO
Data 1 [7:0]
100
HI
Data 2 [15:8]
LO
Data 2 [7:0]
101
HI
Data 3 [15:8]
LO
Data 3 [7:0]
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 24-17. Flash Reserved1 Register (FRSV1)