Specifications

Chapter 3 Hardware
30 Reference Manual ReadyBoard 800
IDE Interface (J6)
The ReadyBoard 800 provides one primary IDE connector (J6) for two IDE devices and one compact
flash socket (J23) for the secondary IDE controller.
The I/O Hub (Southbridge) EIDE interface logic supports the following features:
• Transfer rate up to 100 Mbps
• Increased reliability using Ultra DMA 33/66/100 transfer protocols
• Supports ATAPI and DVD compliant devices
• PIO IDE transfers as fast as 14 Mbps
• Single Bus Master EIDE
• Supports two IDE drives on primary interface and one compact flash card on the secondary IDE
Table 3-5 describes the primary IDE pins/ signals for the IDE 44-pin, 2 rows, odd/even (1, 2) with
2 mm pin spacing.
Table 3-5. Primary IDE Interface Pin/Signal Descriptions (J6)
Pin # Signal Description
1 RESET* Reset – Low active hardware reset (RSTDRV inverted)
2 GND Ground
3 PDD7 Primary Disk Data 7 – These signals (0 to 15) provide the disk data signals
4 PDD8 Primary Disk Data 8 – These signals (0 to 15) provide the disk data signals
5 PDD6 Primary Disk Data 6 – These signals (0 to 15) provide the disk data signals
6 PDD9 Primary Disk Data 9 – These signals (0 to 15) provide the disk data signals
7 PDD5 Primary Disk Data 5 – These signals (0 to 15) provide the disk data signals
8 PDD10 Primary Disk Data 10 – These signals (0 to 15) provide the disk data signals
9 PDD4 Primary Disk Data 4 – These signals (0 to 15) provide the disk data signals
10 PDD11 Primary Disk Data 11 – These signals (0 to 15) provide the disk data signals
11 PDD3 Primary Disk Data 3 – These signals (0 to 15) provide the disk data signals
12 PDD12 Primary Disk Data 12 – These signals (0 to 15) provide the disk data signals
13 PDD2 Primary Disk Data 2 – These signals (0 to 15) provide the disk data signals
14 PDD13 Primary Disk Data 13 – These signals (0 to 15) provide the disk data signals
15 PDD1 Primary Disk Data 1 – These signals (0 to 15) provide the disk data signals
16 PDD14 Primary Disk Data 14 – These signals (0 to 15) provide the disk data signals
17 PDD0 Primary Disk Data 0 – These signals (0 to 15) provide the disk data signals
18 PDD15 Primary Disk Data 15 – These signals (0 to 15) provide the disk data signals
19 GND Ground
20 NC-Key Not Connected - Key pin plug
21 PDDREQ Primary Device DMA Channel Request – Used for DMA transfers between host
and drive (direction of transfer controlled by DIOR* and DIOW*). Also used
in an asynchronous mode with DMACK*. Drive asserts IDRQ0 when ready to
transfer or receive data.
22 GND Ground