
SiI 0680A Data Sheet Revision 1.31-1
3
Subject to change without notice
Table of Contents
1. Overview ..............................................................................................................................................7
1.1
Key Benefits.................................................................................................................................... 7
1.2
Features.......................................................................................................................................... 7
1.2.1
Overall Features .....................................................................................................................................................................7
1.2.2
PCI Features ...........................................................................................................................................................................7
1.2.3
ATA Features ...........................................................................................................................................................................8
1.2.4
Other Features ........................................................................................................................................................................8
1.3
SiI 0680A Technical Description ...................................................................................................... 8
1.4
References...................................................................................................................................... 8
1.5
Functional Description .................................................................................................................... 8
1.6
Functional Block Diagram............................................................................................................... 9
1.7
PCI Interface ................................................................................................................................. 10
1.8
PCI Initialization............................................................................................................................ 10
1.9
PCI Bus Operations ....................................................................................................................... 10
1.10
PCI Configuration Space ............................................................................................................. 11
1.11
Deviations from the Specification................................................................................................ 11
2.1 Device Electrical Characteristics...................................................................................................... 11
2.2
PCI 33 MHz Timing Specifications................................................................................................. 13
2.3
ATA/ATAPI-6 Slew Rate Specifications ......................................................................................... 13
2.4
ATA/ATAPI-6 AC/DC Specifications............................................................................................... 14
2.5
Power Supply Bypass Considerations.......................................................................................... 14
3. Pin Definition......................................................................................................................................15
3.1
SiI 0680A Pin Listing...................................................................................................................... 15
3.2
SiI 0680A Pin Diagram................................................................................................................... 21
3.3 SiI 0680A Pin Descriptions................................................................................................................ 22
3.3.1 IDE/ATA Primary Channel .......................................................................................................................................................22
3.3.2 IDE/ATA Secondary Channel..................................................................................................................................................23
3.3.3 PCI 33MHz 32-bit Section........................................................................................................................................................25
3.3.4 Miscellaneous I/O ....................................................................................................................................................................28
4. Package Drawing ...............................................................................................................................30
5. ASIC Block Diagram...........................................................................................................................31