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3.4. CD Signal Descriptions

3.4.1. PATA IDE

Signal Pin Description I/O PU/PD Comment

IDE_D0

IDE_D1

IDE_D2

IDE_D3

IDE_D4

IDE_D5

IDE_D6

IDE_D7

IDE_D8

IDE_D9

IDE_D10

IDE_D11

IDE_D12

IDE_D13

IDE_D14

IDE_D15

C10

C12

Bidirectional data to / from IDE device. I/O

3.3V

IDE_A0 D13 Address lines to IDE device. O 3.3V

IDE_A1 D14 Address lines to IDE device. O 3.3V

IDE_A2 D15 Address lines to IDE device. O 3.3V

IDE_IOW# D9 I/O write line to IDE device. Data latched on trailing (rising) edge. O 3.3V

IDE_IOR# C14 I/O read line to IDE device. O 3.3V

IDE_REQ D8 IDE Device DMA Request. It is asserted by the IDE device to request a data transfer. I 3.3V

IDE_ACK# D10 IDE Device DMA Acknowledge. O 3.3V

IDE_CS1# D16 IDE Device Chip Select for 1F0h to 1FFh range. O 3.3V

IDE_CS3# D17 IDE Device Chip Select for 3F0h to 3FFh range. O 3.3V

IDE_IORDY C13 IDE device I/O ready input. Pulled low by the IDE device to extend the cycle. I 3.3V PU 4k7 3.3V

IDE_RESET# D18 Reset output to IDE device, active low. O 3.3V

IDE_IRQ D12 Interrupt request from IDE device. I 3.3V PD 10k shall

IDE_CBLID# D77 Input from off-module hardware indicating the type of IDE cable being used. High

indicates a 40-pin cable used for legacy IDE modes. Low indicates that an 80-pin

cable with interleaved grounds is used. Such a cable is required for Ultra-DMA 66,

100 and 133 modes.

I 3.3V

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Adlink Express-IBE2 Manual de usuario Pagina 27