Technical Data
11
3
Technical Data
The following sections contain information on:
•
VMEbus interface
•
connection to the ETK
•
electrical and mechanical data
•
operating conditions
•
firmware update
3.1
VMEbus Interface
The ES1231.1-A communicates with the ES1130 Simulation Controller or the
ES1120 System Controller via the VME bus. A VME64x interface has been
implemented to ensure high system performance.
The processor board has direct access to the Data Acquisition Memory Control-
ler (DAMC) via the VMEbus. The DAMC is responsible for the communication
between ETK and ES1231.1-A. Interrupts control the data transfer between
the master CPU and ES1231.1-A.
It is possible to manipulate or preprocess the large amounts of data with the
local CPU (MPC555). The local CPU can also be accessed via the VME bus.
In addition to the A24/D16 modes, which make it possible to work with exist-
ing boards, an A40/MD32 access (multiplexed address and data accesses,
VME64 extension) is used. The maximum bus transfer rate with A40/MD32
access in block mode is approx. 40 MByte/s. A high data transfer rate can be
attained using the VME bus together with the ES1120 System Controller.
Type
Slave
Access types
A24:D16; A40:MD32
Interrupters
16 interrupters; level and vector can be pro-
grammed
Configuration
Auto-ID configuration
ES1231_1-ug-en.book Seite 11 Montag, 12. Mai 2003 12:37 12
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