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PowerQUICC II Register Programming
Table 6-2. MPC8272ADS Memory Map — E 2 PROM as Boot Device
Address
Range
C0000000 -
Memory
Type
Empty space
Device Name
Port
Size
-
Memory
Size
32 MBytes
C1FFFFFF
C2000000 -
Flash SIMM
32M SIMM -
32
32 MBytes
C2FFFFFF
C3000000 -
C37FFFFF
16M SIMM -
SM73248
SM73288
C3800000 -
C3FFFFFF
C4000000 -
CFFFFFFF
D0000000 -
D07FFFFF
D0800000 -
FFFFDFFF
Empty space
Empty space
Empty space
8M SIMM
SM73228
-
~200
MBytes
8 MBytes
~1 GBytes
FFF00000 5 -
FFFFFFFF
E 2 PROM
ATMEL AT28HC64B
8
32 KBytes
1
2
3
4
5
The device appears repeatedly in multiples of its port-size (in bytes) X depth. E.g., BCSR0 appears at memory
locations 4700000, 4700020, 4700040..., while BCSR1 appears at 4700004, 4700024, 4700044... and so on.
The internal space of the ATM UNI control port is 256 bytes, however, the minimal block size that may be controlled
by the GPCM is 32 KBytes.
Initially at h0F000000 - h0F00FFFF, set by hard reset configuration.
Refer to the MPC8272 PowerQUICC II TM Family Reference Manual for complete description of the PowerQUICC II
internal memory map.
An 8-Kbyte device is used (16- and 32-Kbyte devices can also be used) so it appears repeatedly in 8 Kbyte multiples
starting from FFF00000.
6.2
PowerQUICC II Register Programming
The PowerQUICC II provides the following functions on the MPC8272ADS:
?
?
System functions that include the following:
— PPC bus SDRAM controller
— Chip-select generator
Communication functions that include the following:
— ATM SAR
— Dual Fast Ethernet controller
— UART for terminal or host computer connection
— USB controller
Chapter 6. Memory Map
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MPC8272CVRP 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications
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