Freescale Semiconductor Demonstration Board for Freescale MC9S12XHY256 Microcontroller DEMO9S12XHY256 DEMO9S12XHY256 Manual De Usuario
Los códigos de productos
DEMO9S12XHY256
256 KByte Flash Module (S12XFTMR256K1V1)
MC9S12XHY-Family Reference Manual, Rev. 1.04
Freescale Semiconductor
591
(as evidenced by the Memory Controller returning CCIF to 1). Some commands return information to the
FCCOB register array.
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.
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.
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
18.3.2.12 Flash Reserved0 Register (FRSV0)
This Flash register is reserved for factory testing.
All bits in the FRSV0 register read 0 and are not writable.
Table 18-23. 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
0, Global address [22:16]
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 18-18. Flash Reserved0 Register (FRSV0)