Copyright © Siemens AG 2016. All rights reserved
21
ERTEC 200P-2 Manual
Technical data subject to change
Version 1.0
Operation without external host
shows the application of the standard IO.
Digital
Inputs
(parallel)
D-I
D-I
D-I
D-I
Digital
Outputs
(parallel)
D-O
D-O
D-O
D-O
(24V)
(24V)
TCM
(
(256KByte)
CPU-Core
ARM926EJ-S
Ethernet-Channel
(Port 0)
Ethernet-Channel
(Port 1)
PN-IP
G
P
IO
PHY inside
PHY inside
Magnetics
Magnetics
1
1
GPIO-Modul
Peripheral-
Interface
(PER-IF)
Memory-/
SDRAM-
Controller
(EMC)
1
1
1
1
1
1
Local API
Switch Control
E
M
C
IO-RAM
P
N
-
P
L
L
1
INT
ERTEC 200P
SDRAM
Flash
contains:
PN-IO Stack & Application
(Boot in SDRAM)
Figure 3: Application operation without external host
1.4 Application notes
The user should pay attention to the following application notes:
1.4.1 EMC SDRAM Interface
The EMC of the ERTEC 200P-2 has two possible settings for clocked signal output
(address, data and control signals) to an external SDRAM. These can be configured
over
EXTENDED_CONFIG.SODM
(see 2.3.5.8):
EXTENDED_CONFIG.SODM
=
'0'
:
SDRAM signal output with feedback
clock at pin
CLK_I_SDRAM
(register value after reset)
EXTENDED_CONFIG.SODM
= '1': SDRAM signal output with internal sys-
tem clock
Important:
In ERTEC 200P Step1, configure EXTENDED_CONFIG.SODM = ’1’.
To achieve the timing below, configure EXTENDED_CONFIG.SODM = '0' (default
value). EXTENDED_CONFIG.SODM = '1' is not permitted
Содержание ERTEC 200P
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