10 Memory Description; Memory Partitioning Of The Ertec 200; Table 33: Partitioning Of Memory Areas - Siemens ERTEC200 Manual

10 Memory Description

This section presents a detailed description of the memory areas of all integrated function groups.

10.1 Memory Partitioning of the ERTEC 200

The table below lists the AHB masters along with their options for accessing various memory areas.
Start- and
Seg.
Endadress
0000 0000
0
0FFF FFFF
1000 0000
1
1FFF FFFF
2000 0000
2
2FFF FFFF
3000 0000
3
3FFF FFFF
4000 0000
all APB interfaces
4
4FFF FFFF
5000 0000
5
5FFF FFFF
6000 0000
6
6FFF FFFF
7000 0000
7
7FFF FFFF
8000 0000
8
8FFF FFFF
9000 0000
9 - 15
FFFF FFFF

Table 33: Partitioning of Memory Areas

The D-TCM with a maximum size of 4 Kbytes can be displayed on any aligned address area. The ARM946E-S then
accesses the D-TCM under this address and not the AHB bus. In addition, the locked I-cache of 2/4/6 Kbytes can be
displayed on any aligned address area.
Only the ARM946E-S can access both address areas.
IRT accesses to its own KRAM do not use the AHB bus. These accesses are implemented in the IRT switch controller.
The KRAM can be addressed starting from the memory area 0x1010_0000. An access in the non-permissible register
area is detected by an IRT-internal error signal and not by an AHB acknowledgement time-out error.
Copyright © Siemens AG 2007. All rights reserved.
Technical data subject to change
Function Area for Function Area for
ARM9
Boot ROM(0-8kB)
EMIF-SDRAM
Boot ROM(0-8kB)
(0-128MB)
EMIF-SDRAM
EMIF-Memory
(0-64MB)
EMIF-Memory
D-TCM(4kB)
locked I-Cache
(2/4/6kB)
IRT-Switch- IRT-Switch-
Controller
EMIF (SDRAM) EMIF (SDRAM)
EMIF
( Area: Bank 0-3) ( Area: Bank 0-3)
incl. Boot-ROM
ARM-ICU
Not used
EMIF-Register
DMA
Not used
Function Area for
IRTE LBU
Boot ROM(0-8kB)
EMIF-SDRAM
(0-128MB) (0-128MB)
EMIF-Memory
(0-64MB) (0-64MB)
IRT-Switch-
Controller Controller
EMIF (SDRAM)
EMIF EMIF
( Area: Bank 0-3)
all APB interfaces
Not used
incl. Boot-ROM
Not used Not used
Not used Not used
Not used EMIF-Register
Not used Not used
Not used Not used
91
Function Area for
DMA
Boot ROM(0-8kB)
EMIF-SDRAM
(0-128MB)
EMIF-Memory
(0-64MB)
Not used
EMIF (SDRAM)
EMIF
( Area: Bank 0-3)
all APB interfaces
incl. Boot-ROM
Not used
Not used
Not used
Not used
Not used
ERTEC 200 Manual
Version 1.1.0