Copyright © Siemens AG 2016. All rights reserved
166
ERTEC 200P-2 Manual
Technical data subject to change
Version 1.0
2.3.5.6 Application examples
Following figure shows an example of connections between EMC and external SDRAM
devices:
Figure 16: EMC, Application Example SDRAM
Following figure shows an example of connections between EMC and external SDRAM
device in combination with an external driver to separate SDRAM- and SRAM-like devic-
es.
Figure 17: EMC, Application example: Combination of SDRAM and asynchronous Interfaces
Control_O
DAT
CLK
DQM
CAS
RAS
WE
CKE
CS
Control_O
CLK
CLK
16 bit
SDRAM
16 bit
SDRAM
32 bit
SDRAM
ADR
D[15:0]
ADR
D[15:0]
DQM
CAS
RAS
WE
CKE
CS
DQM
CAS
RAS
WE
CKE
CS
CLK
ADR
Control
_I
1 x 32
{
{
2 x 16
Connections of SDRAM - Devices
ADR
D[31:0]
16
16
EMC
connection_sdram_devices.vsd
Control_O
DAT
CLK
DQM
CAS
RAS
WE
CKE
CS
32 bit
SDRAM
CLK
ADR
Control
_I
1 x 32
{
ADR[...]
D[31:0]
EMC
ADR
DAT
EN
S
R
A
M
#
1
Control
ADR
DAT
S
R
A
M
#
2
Control
ADR
DAT
F
P
G
A
Control
ADR
DAT
B
O
O
T
R
O
M
Control
ADR
DAT
driver
ADR
DAT
connection_sdram_driver.vsd
DTXR
XOE_DRIVER
Connections of SDRAM devices