Technical Reference Manual
002-29852 Rev. *B
4.13.3 FPB
4.13.3.1 CM4_FPB_CTRL
Description:
FlashPatch Control Register
Address:
0xE0002000
Offset:
0x0
Retention:
Retained
IsDeepSleep:
No
Comment:
The FP_CTRL Register characteristics are:
Purpose: Provides FPB implementation information, and the global enable for the FPB unit.
Usage constraints: There are no usage constraints.
Configurations: Always implemented.
Attributes: See Table C1-23.
Default:
0x260
Bit-field Table
Bits
7
6
5
4
3
2
1
0
Name
NUM_CODE_LO [7:4]
None [3:2]
KEY [1:1]
ENABLE
[0:0]
Bits
15
14
13
12
11
10
9
8
Name
None
[15:15]
NUM_CODE_HI [14:12]
NUM_LIT [11:8]
Bits
23
22
21
20
19
18
17
16
Name
None [23:16]
Bits
31
30
29
28
27
26
25
24
Name
REV [31:28]
None [27:24]
Bit-fields
Bits Name
SW
HW
Default or
Enum
Description
0
ENABLE
RW
R
0
Enable bit for the FPB:
0 Flash Patch Breakpoint disabled.
1 Flash Patch Breakpoint enabled.
A Power-on reset clears this bit to 0.
1
KEY
RW
R
0
On any write to FP_CTRL, this bit must be 1. A write to
the register with this bit set to zero is ignored. The
Flash Patch Breakpoint unit ignores the write unless
this bit is 1. This bit is RAZ.
4:7
NUM_CODE_LO
RW
R
6
The least significant bits, being bits[3:0], of
NUM_CODE, the number of instruction address
comparators.
If NUM_CODE[6:0] is zero, the implementation does
not support any instruction address comparators.
These bits are read only.
8:11
NUM_LIT
RW
R
2
The number of literal address comparators supported,
starting from NUM_CODE upwards. UNK/SBZP if
Flash Patch is not implemented. Flash Patch is not
implemented if
FP_REMAP[29] is 0.
If this field is zero, the implementation does not
support literal comparators. These bits are read-only.
12:14 NUM_CODE_HI
RW
R
0
The most significant bits, being bits[6:4], of
NUM_CODE, the number of instruction address
comparators, see bits[7:4].
These bits are read only.
368
2022-04-18
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