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PC/104-Bus Kapitel: Anschlüsse

Beckhoff New Automation Technology CB4050 Seite 21

4.5 PC/104-Bus

Eine auf dem CB4050-Board integrierte LPC-zu-ISA-Bridge (Fintek® F85226F) ermöglicht den Anschluss

von ISA-Karten über einen Standard-PC/104-Stecker bei voller 16-Bit-Kompatibilität. Weitere

Informationen über diese Schnittstelle können der PC/104-Spezifikation entnommen werden (s. Kap.

"Spezifikationen und Dokumente", p. 12).

Pinbelegung für den Standard-8-Bit-PC/104-Stecker

Beschreibung Name Pin Name Beschreibung

IO Channel Check IOCHK# A1 B1 GND Masse

ISA – Data 7 SD7 A2 B2 RSTDRV Reset Drive

ISA – Data 6 SD6 A3 B3 VCC Versorgungsspannung 5V

ISA – Data 5 SD5 A4 B4 IRQ9 ISA – Interrupt 9 (2)

ISA – Data 4 SD4 A5 B5 -5V Versorgungsspannung -5V

ISA – Data 3 SD3 A6 B6 DRQ2 ISA – DMA Request 2

ISA – Data 2 SD2 A7 B7 -12V Versorgungsspannung-12V

ISA – Data 1 SD1 A8 B8 IOCHRDY ISA – IO Channel Ready

ISA – Data 0 SD0 A9 B9 12V Versorgungsspannung 12V

ISA – IO Channel Ready IOCHRDY A10 B10 N/C Reserviert

ISA – Address Enable AEN A11 B11 SMEMW# System Memory Write

ISA – Address 19 SA19 A12 B12 SMEMR# System Memory Read

ISA – Address 18 SA18 A13 B13 IOW# ISA – IO Write

ISA – Address 17 SA17 A14 B14 IOR# ISA – IO Read

ISA – Address 16 SA16 A15 B15 DACK3# ISA – DMA Acknowledge 3

ISA – Address 15 SA15 A16 B16 DRQ3 ISA – DMA Request 3

ISA – Address 14 SA14 A17 B17 DACK1# ISA – DMA Acknowledge 1

ISA – Address 13 SA13 A18 B18 DRQ1 ISA – DMA Request 1

ISA – Address 12 SA12 A19 B19 REFRESH# ISA – Refresh

ISA – Address 11 SA11 A20 B20 SYSCLK ISA – System Clock

ISA – Address 10 SA10 A21 B21 IRQ7 ISA – Interrupt 7

ISA – Address 9 SA9 A22 B22 IRQ6 ISA – Interrupt 6

ISA – Address 8 SA8 A23 B23 IRQ5 ISA – Interrupt 5

ISA – Address 7 SA7 A24 B24 IRQ4 ISA – Interrupt 4

ISA – Address 6 SA6 A25 B25 IRQ3 ISA – Interrupt 3

ISA – Address 5 SA5 A26 B26 DACK2# ISA – DMA Acknowledge 2

ISA – Address 4 SA4 A27 B27 T/C ISA – Terminal Count

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 69 70

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