Flash Memory
MPC5606S Microcontroller Reference Manual, Rev. 7
648
Freescale Semiconductor
The contents of the register are loaded from location 0x203E00 of the shadow region in the code flash
(bank0) array at reset. To temporarily change the values of any of the fields in the PFAPR, a write to the
IPS-mapped register is performed. To change the values loaded into the PFAPR
at reset
, the word location
at address 0x203E00 of the shadow region in the flash array must be programmed using the normal
sequence of operations. The reset value shown in
reflects an erased or unprogrammed value
from the shadow region.
17.4.4
Functional description
References to the PFLASH2P_LCA block diagram shown in
will assist in understanding
much of the discussion in this section.
The PFLASH2P_LCA interfaces between 2 AHB-Lite 2.v6 system bus master ports and three banks of
low-cost flash memory arrays.
Offset 0x024
Access:
Read/write
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
0
0
0
0
0
0
ARBM
M7P
FD
M6P
FD
M5P
FD
M4P
FD
M3P
FD
M2P
FD
M1P
FD
M0P
FD
W
Reset
*
*
*
*
*
*
1
1
1
1
1
1
1
1
1
1
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
R
M7AP
M6AP
M5AP
M4AP
M3AP
M2AP
M1AP
M0AP
W
Reset
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Figure 17-46. PFLASH Access Protection Register (PFAPR)
Table 17-66. PFLASH Access Protection Register field descriptions
Field
Description
ARBM
Arbitration mode. This 2-bit field controls the arbitration for PFLASH controllers supporting 2 AHB
ports. The port arbitration mode is used only when accesses from the 2 AHB ports attempt to
simultaneously reference the same flash bank. Simultaneous references to different memory banks
are processed concurrently.
00 Fixed priority arbitration with AHB p0 > p1
01 Fixed priority arbitration with AHB p1 > p0
1- Round-robin arbitration
MxPFD
Master x Prefetch Disable (x = 0,1,2,...,7). These bits control whether prefetching may be triggered
based on the master number of the requesting AHB master. This field is further qualified by the
PFCRn[B02_Px_DPFE, B02_Px_IPFE, Bx_Py_BFE] bits.
0 Prefetching may be triggered by this master
1 No prefetching may be triggered by this master
MxAP
Master x Access Protection (x = 0,1,2,...,7). These fields control whether read and write accesses
to the flash are allowed based on the master number of the initiating module.
00 No accesses may be performed by this master
01 Only read accesses may be performed by this master
10 Only write accesses may be performed by this master
11 Both read and write accesses may be performed by this master
Содержание MPC5602S
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Страница 82: ...Memory Map MPC5606S Microcontroller Reference Manual Rev 7 80 Freescale Semiconductor...
Страница 112: ...Signal Description MPC5606S Microcontroller Reference Manual Rev 7 110 Freescale Semiconductor...
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Страница 470: ...e200z0h Core MPC5606S Microcontroller Reference Manual Rev 7 468 Freescale Semiconductor...
Страница 524: ...Enhanced Direct Memory Access eDMA MPC5606S Microcontroller Reference Manual Rev 7 522 Freescale Semiconductor...
Страница 546: ...Error Correction Status Module ECSM MPC5606S Microcontroller Reference Manual Rev 7 544 Freescale Semiconductor...
Страница 669: ...Flash Memory MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 667...
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Страница 882: ...LIN Controller LINFlex MPC5606S Microcontroller Reference Manual Rev 7 880 Freescale Semiconductor...
Страница 901: ...Memory Protection Unit MPU MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 899...
Страница 902: ...Memory Protection Unit MPU MPC5606S Microcontroller Reference Manual Rev 7 900 Freescale Semiconductor...
Страница 955: ...Mode Entry Module MC_ME MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 953...
Страница 956: ...Mode Entry Module MC_ME MPC5606S Microcontroller Reference Manual Rev 7 954 Freescale Semiconductor...
Страница 1072: ...Quad Serial Peripheral Interface QuadSPI MPC5606S Microcontroller Reference Manual Rev 7 1070 Freescale Semiconductor...
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Страница 1106: ...Real Time Clock RTC API MPC5606S Microcontroller Reference Manual Rev 7 1104 Freescale Semiconductor...
Страница 1186: ...Stepper Stall Detect SSD MPC5606S Microcontroller Reference Manual Rev 7 1184 Freescale Semiconductor...
Страница 1213: ...System Integration Unit Lite SIUL MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 1211...
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Страница 1238: ...Voltage Regulators and Power Supplies MPC5606S Microcontroller Reference Manual Rev 7 1236 Freescale Semiconductor...
Страница 1252: ...Wakeup Unit WKPU MPC5606S Microcontroller Reference Manual Rev 7 1250 Freescale Semiconductor...
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