Copyright © Siemens AG 2016. All rights reserved
20
ERTEC 200P-2 Manual
Technical data subject to change
Version 1.0
Host System
(Technology)
SDRAM
contains:
PN-IO Stack & IO
Configurationinfo
(boot from external Host)
TCM
(256KByte)
CPU-Core
ARM926EJ-S
Ethernet-Channel
(Port 1)
Ethernet-Channel
(Port 2)
PN-IP
G
P
IO
PHY inside
PHY inside
Magnetics
Magnetics
Host
Interface
(16, 32 Bit)
Peripheral-
Interface
(PER-IF)
Memory-/
SDRAM-
Controller
(EMC)
Local API
Switch Control
E
M
C
IO-RAM
(cyclic data)
X
H
IF
P
N
-
P
L
L
1
1
ERTEC 200P
2
RAM
Flash
contains:
PN-IO Stack
& Application
Sync
Figure 2: Application operation with external host
At GPIO31:0 outputs from the PLL are available in the PN-IP for synchronous applica-
tions on the host. The data transfer to / from the external host is then controlled
through these phase signals and corresponding interrupts. If the host has an own PLL
for cycle synchronization, these can be synchronized by the PLL of the ERTEC 200P.
1.3.2 Use Case 2 (UC2): Operation without external Host
The ERTEC 200P is available for the realization of complex standard IO and remote IO
applications with notably more application code. The ERTEC 200P has an external
memory interface (flash, SDRAM, SRAM, peripherals) and a small integrated memory
(256 kbytes). The PN IO stack and the application lie in the external memory. High-
performance acyclic communication data or application code that is to executed rapidly
are loaded in the integrated memory of the ERTEC 200P.
The digital and analog IOs are connected to the ERTEC 200P pins. Cyclic data can be
controlled by the ARM926 or the GDMA controller via 2x SPI. Alternatively an external
bus controller can also be connected via the EMC.
The following profile is supported:
-
PN stack and application are combined as sources
-
Time-critical application code ( 256 kbytes) can be loaded into the integrated RAM
Содержание ERTEC 200P
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