Aim ACE1553-3U-4, Руководство по оборудованию, Страница: 31 / 35

ACE1553-3U-4 Hardware Manual 23
5 TECHNICAL DATA
PXI-Express / CompactPCI-Express bus:
Compatible with PCI-Express Standard (Release 1.1)
3.3V PCI-Express - 1xLane PCI-Express bus operation 2.5 Gbit/s
PXI-Express / CompactPCI-Express Hybrid/Peripheral slot compatibility
Memory:
Fast Industrial DDR2-RAM
128 MByte memory size
16 bit wide organized
shared between BIU-processor and PCI Express bus
BIU-Section:
low power, high performance 32bit RISC Processor;
core voltage 1.0V,
core speed 400 MHz,
external bus speed 100 MHz,
Encoder:
For each BIU, one Manchester Encoder with Parity generator and error
injection:

Single implementation with bus switching logic (not redundant)

Response time support via eight bit timer with 250ns resolution.
Error Injection:

Parity error on selected word

SYNC pattern definable on half bit basis on selectable word

Manchester stuck at low or high error in selected word and bit position

Gap error between selected words for 0.5 to 7.5 µs in 0.5µs steps

Bit count error on selected word +/- 3 bits
Decoder:
For each BIU, one Manchester Decoder with Parity checker and error detection.

Single implementation with bus switching logic (not redundant).

Full error detection and indication

Inter-word gap and Response Time Measurement (<=100µs) with 250ns
resolution.