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Chapter 30 Flash Memory
MPC5606BK Microcontroller Reference Manual, Rev. 2
876
Freescale Semiconductor
30.7.2.2.2
Platform Flash Configuration Register 1 (PFCR1)
This register defines the configuration associated with flash memory bank1. This corresponds to the data
flash memory. It includes fields that provide specific information for as many as two separate AHB ports
(p0 and the optional p1). For the platform flash memory controller module, the fields associated with AHB
port p1 are ignored. The register is described below in
NOTE
Do not execute code from flash memory when you are programming
PFCR1. If you wish to program PFCR1, execute your application code from
RAM.
Offset 0x020
Access: Read/write
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
BK1_APC
BK1_WWSC
BK1_RWSC
BK1_R
WWC
W
Reset
0
0
0
1
1
0
0
0
1
1
0
0
0
1
1
1
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
R
BK1
_
R
WWC
0
0
0
0
0
0
0
BK1
_
R
WWC
0
0
0
0
0
0
B1_P0
_
BFE
W
Reset
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
Figure 30-43. PFlash Configuration Register 1 (PFCR1)
Table 30-62. PFCR1 field descriptions
Field
Description
BK1_APC
The setting for APC must be the same as RWSC.
BK1_WWSC
Bank1 Write Wait-State Control
This field is used to control the number of wait-states to be added to the flash memory array access
time for writes. This field must be set to a value appropriate to the operating frequency of the PFlash.
The required settings are documented in the device data sheet. Higher operating frequencies
require non-zero settings for this field for proper flash memory operation. This field is set to an
appropriate value by hardware reset.
00000 No additional wait-states are added
00001 One additional wait-state is added
00010 Two additional wait-states are added
...
11111 31 additional wait-states are added
This field is ignored in single bank flash memory configurations.
Note:
The Platform Flash Memory Controller does not support Write Wait-State Control since this
capability is not supported by the flash memory array.
Summary of Contents for MPC5605BK
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