Memtech AT3515 Betriebsanweisung PDF herunterladen (Seite 9)

3.5” Bulldog User Guide April 10, 2006 page 9 of 13

3.3 IDE INTERFACE

The AT3515 uses a unitized signal and power connector. Maximum cable length is 18

inches. Recommended cable length is 12 inches or less, especially if advanced PIO or

DMA transfer modes are used.

3.3.1 IDE CONNECTOR PINOUT

The signal to pin assignment for the 40-pin IDE interface connector is listed in the

following table.

PIN SIGNAL PIN SIGNAL

1 RESET- 2 GND

3 DATA7 4 DATA8

5 DATA6 6 DATA9

7 DATA5 8 DATA10

9 DATA4 10 DATA11

11 DATA3 12 DATA12

13 DATA2 14 DATA13

15 DATA1 16 DATA14

17 DATA0 18 DATA15

19 GND 20 KEY (NO PIN)

21 DMARQ 22 GND

23 IOW- 24 GND

25 IOR- 26 GND

27 IOCHRDY 28 CSEL

29 DMACK- 30 GND

31 IRQ 32 IOCS16-

33 ADDR1 34 PDIAG-

35 ADDR0 36 ADDR2

37 CS0- 38 CS1-

39 DASP- 40 GND

4. OPERATION

4.1 ECC

The IDE controller utilizes a 72-bit Reed-Solomon Error Detection Code (EDC) and Error

Correction Code (ECC), which provides the following error immunity for each 512-byte

block of data:

1. Corrects up to three random 12-bit symbol errors.

2. Corrects single bursts up to 25 bits.

1 2 3 4 5 6 7 8 9 10 11 12 13

Keine Kommentare

Memtech AT3515 Betriebsanweisung Seite 9