User’s Manual
ESM-2850 User’s Manual
37
2.4.3.1 Signal Description – ETX Express Connector 2 (CN1B)
2.4.3.1.1 IDE Signals
Signal
Signal Description
IDE_D[0:15]
Bidirectional data to / from IDE device.
IDE_A[0:2]
Address lines to IDE device.
IDE_REQ#
IDE Device DMA Request. It is asserted by the IDE device to request a data
transfer.
IDE_IOW#
I/O write line to IDE device. Data latched on trailing (rising) edge.
IDE_ACK#
IDE Device DMA Acknowledge.
IDE_IRQ
Interrupt request from IDE device.
IDE_IORDY
IDE device I/O ready input. Pulled low by the IDE device to extend the cycle.
IDE_IOR#
I/O read line to IDE device.
IDE_CS1#
IDE Device Chip Select for 1F0h to 1FFh range.
IDE_CS3#
IDE Device Chip Select for 3F0h to 3FFhrange.
IDE_RESET#
Reset output to IDE device, active low.
Summary of Contents for ESM-2850
Page 17: ...User s Manual ESM 2850 User s Manual 17 2 Hardware Configuration ...
Page 18: ...ESM 2850 18 ESM 2850 User s Manual 2 1 Product Overview ...
Page 39: ...User s Manual ESM 2850 User s Manual 39 3 BIOS Setup ...
Page 73: ...User s Manual ESM 2850 User s Manual 73 5 Measurement Drawing ...
Page 74: ...ESM 2850 74 ESM 2850 User s Manual Unit mm ...
Page 76: ...ESM 2850 76 ESM 2850 User s Manual Appendix B AWARD BIOS POST Messages ...