S912XEG128J2VAL
| Model | S912XEG128J2VAL |
| Description | IC,MICROCONTROLLER,16-BIT,CPU12 CPU,CMOS,QFP,112PIN,PLASTIC |
| PDF file | Total 1327 pages (File size: 7M) |
| Chip Manufacturer | ROCHESTER |
Chapter 28 768 KByte Flash Module (S12XFTM768K4V2)
Offset Module Base + 0x000A
Because of an order from the United States International Trade Commission, BGA-packaged product lines and part numbers indicated here currently are not
available from Freescale for import or sale in the United States prior to September 2010: S12XE products in 208 MAPBGA packages
7
6
5
4
3
2
1
0
R
CCOB[15:8]
W
Reset
0
0
0
0
0
0
0
0
Figure 28-16. Flash Common Command Object High Register (FCCOBHI)
Offset Module Base + 0x000B
7
6
5
4
3
2
1
0
R
CCOB[7:0]
W
Reset
0
0
0
0
0
0
0
0
Figure 28-17. Flash Common Command Object Low Register (FCCOBLO)
28.3.2.11.1 FCCOB - NVM Command Mode
NVM command mode uses the indexed FCCOB register to provide a command code and its relevant
parameters to the Memory Controller. The user first sets up all required FCCOB fields and then initiates
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 generic format for the FCCOB parameter fields in NVM command mode is shown in
Table 28-26.
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 28-26
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
Section 28.4.2.
Table 28-26. FCCOB - NVM Command Mode (Typical Usage)
CCOBIX[2:0]
000
LO
HI
001
LO
HI
010
LO
Data 0 [7:0]
Global address [7:0]
Data 0 [15:8]
0, Global address [22:16]
Global address [15:8]
Byte
HI
FCCOB Parameter Fields (NVM Command Mode)
FCMD[7:0] defining Flash command
MC9S12XE-Family Reference Manual , Rev. 1.19
Freescale Semiconductor
1103
