Copyright © Siemens AG 2016. All rights reserved
419
ERTEC 200P-2 Manual
Technical data subject to change
Version 1.0
For booting from an external host, the primary boot loader must create a page for the D-
TCM (boot RAM) in the page registers of the HostIF (2x XHIF). The remaining pages can
then be set up specifically by the external host. It makes sense to set up additional pages
for PN-IP, PER-IF, EMC-SDRAM / EMC-SRAM, GDMA and APB peripherals
.
The following table
shows the paging
register set within
the XHIF module.
Name
Address
CPU-
16bit
data
width
Description
Name
Address
CPU-
32bit
data
width
Description
Default
XHIF_P0_RG_L
00h
Lower 16 bit of the
range
configuration
15:8 write- and
readable
7:0 only readable
XHIF_P0_RG
00h
32 bit of the
range
configura-
tion
31:22 only
readable
21:8 write and
readable
7:0 only
readable
00h
XHIF_P1_RG_L
10h
XHIF_P1_RG
10h
00h
XHIF_P2_RG_L
20h
XHIF_P2_RG
20h
00h
XHIF_P3_RG_L
30h
XHIF_P3_RG
30h
00h
XHIF_P0_RG_H
02h
Upper 16 bit of the
range
configuration
15:6 only readable
5:0 write- and
readable
00h
XHIF_P1_RG_H
12h
00h
XHIF_P2_RG_H
22h
00h
XHIF_P3_RG_H
32h
00h
XHIF_P0_OF_L
04h
Lower 16 bit of the
offset
configuration
15:8 write- and
readable
7:0 only readable
XHIF_P0_OF
04h
32 bit of the
offset
configura-
tion
31:8 write- and
readable
7:0 only
readable
00h
XHIF_P1_OF_L
14h
XHIF_P1_OF
14h
00h
XHIF_P2_OF_L
24h
XHIF_P2_OF
24h
00h
XHIF_P3_OF_L
34h
XHIF_P3_OF
34h
00h
XHIF_P0_OF_H
06h
Upper 16 bit of the
offset
configuration
15:0 read/writeable
00h
XHIF_P1_OF_H
16h
00h
XHIF_P2_OF_H
26h
00h
XHIF_P3_OF_H
36h
00h
XHIF_P0_CFG
08h
Config. of the
buffering mode for
each single page
1: Page is 32-Bit
Page
0: Page is 16-Bit
Page
XHIF_P0_CFG
08h
Config. of the
buffering mode
for each single
page
1: Buffering
mode on read
enabled
0 : Buffering
mode on read
disabled
00h
XHIF_P1_CFG
18h
XHIF_P1_CFG
18h
00h
XHIF_P2_CFG
28h
XHIF_P2_CFG
28h
00h
XHIF_P3_CFG
38h
XHIF_P3_CFG
38h
00h
XHIF_VERSION_L
3Ch
Version of the XHIF
XHIF_
VERSION
3Ch
IA&DT IP
version
compliant
XHIF_VERSION_H
3Eh