1 • Overview ........................................................................................................................................................ 8
1.1 Features ..................................................................................................................................................................................................... 8
2 • Configuration ........................................................................................................................................... 10
2.1 Link Functions ....................................................................................................................................................................................... 10
2.2 Suggested Link Settings .................................................................................................................................................................. 11
2.3 Factory Test Link (P1)......................................................................................................................................................................... 11
2.13 Spare Link (P5 5-6) ........................................................................................................................................................................... 15
2.14 Special Linking Requirements .................................................................................................................................................... 15
3 • Functional Description ......................................................................................................................... 16
3.1 PowerPC Processor ............................................................................................................................................................................ 16
3.2 Host Bridge ............................................................................................................................................................................................ 17
3.3 RAM ............................................................................................................................................................................................................ 18
3.4 Non-Volatile RAM (NVRAM) ............................................................................................................................................................. 18
3.5 Flash Memory ....................................................................................................................................................................................... 19
3.5.1 Boot Flash ........................................................................................................................................................................................................... 19
3.5.2 User Flash ........................................................................................................................................................................................................... 20
3.5.3 Flash Sector Protection ................................................................................................................................................................................ 20
3.7 PMC Site ................................................................................................................................................................................................... 21
3.7.1 PMC Rear I/O Tracking.................................................................................................................................................................................. 22
3.7.2 'Peripheral Only' Mode .................................................................................................................................................................................. 22
3.7.4 'Alternative PMC I/O' Mode ......................................................................................................................................................................... 23
3.8 Serial Ports ............................................................................................................................................................................................. 24
3.9 Ethernet ................................................................................................................................................................................................... 25
3.10 USB 2.0 .................................................................................................................................................................................................. 25
3.11 Timers .................................................................................................................................................................................................... 25
3.12 Watchdog Timer ............................................................................................................................................................................... 25
3.13 DMA Engines ....................................................................................................................................................................................... 26
C Interface ........................................................................................................................................................................................ 26
2
3.14.1 Serial EEPROM ................................................................................................................................................................................................ 26
3.14.2 Real-Time Clock ............................................................................................................................................................................................ 26
3.14.3 Elapsed Time Indicator .............................................................................................................................................................................. 27
3.14.4 Temperature Sensing ................................................................................................................................................................................. 27
(continued overleaf)
4 IMP2B 3U cPCI Single Board Computer
Contents
Publication No. IMP2B-0HH/5