Flash Memory
MPC5606S Microcontroller Reference Manual, Rev. 7
Freescale Semiconductor
665
Table 17-70. General flash memory setting recommendations for 64 MHz system clock
1
Access
Parameter
General Recommendations
Code flash (banks 0 and 2)
4 line buffers per port
Data flash (bank 1)
1 line buffer per port
Parameter
symbol
in register PFCR0
Comments
Parameter
symbolin register
PFCR1
Comments
Port 0
(Core only
Page Buffer Enable B0_P0_BFE = 1
Enable port’s
buffers
B1_P0_BFE = 1
Enable port’s buffer
Instruction Prefetch
Enable
B0_P0_IPFE = 1
Instructions are
mostly sequential,
so prefeching can
improve
performance.
—
—
Data Prefetch
Enable
B0_P0_DPFE = 0
Data accesses are
expected to
generally be
random, not
sequential
—
—
Prefetch Limit
B0_P0_PFLIM = 3 Prefetch on hit or
miss
—
—
Page Buffer
Configuration
B0_P0_BCFG = 3 Allocate 3 line
buffers for
instructions,
1 for data
—
—
Port 1
(DCU,
eDMA)
Page Buffer Enable B0_P1_BFE = 1
Enable port’s
buffers
B1_P1_BFE = 1
Enable port’s buffer
Instruction Prefetch
Enable
B0_P1_IPFE = 0
No instruction
access on port 1
—
—
Data Prefetch
Enable
B0_P1_DPFE = 1
Enable prefetching
assuming there is
significant
sequential data
—
—
Prefetch Limit
B0_P1_PFLIM = 1 Prefetch on miss
only (allows more
bandwidth for core)
—
—
Page Buffer
Configuration
B0_P1_BCFG = 0 All 4 line buffers
available for any
access
—
—
Содержание MPC5602S
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Страница 82: ...Memory Map MPC5606S Microcontroller Reference Manual Rev 7 80 Freescale Semiconductor...
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Страница 1213: ...System Integration Unit Lite SIUL MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 1211...
Страница 1214: ...System Integration Unit Lite SIUL MPC5606S Microcontroller Reference Manual Rev 7 1212 Freescale Semiconductor...
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...
Страница 1258: ...Registers Under Protection MPC5606S Microcontroller Reference Manual Rev 7 1256 Freescale Semiconductor...
Страница 1323: ...Register Map MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 1321...
Страница 1324: ...Register Map MPC5606S Microcontroller Reference Manual Rev 7 1322 Freescale Semiconductor...