This chapter provides a detailed description of the STX Interface signals.
The signals are arranged in functional groups according to their associated interface.
On the figure below there are shown the STX Interface signal group locations
(J1 and J2 connectors on the STX baseboard top view).
In the table below there is shown the STX Interface signal summary.
| Signal Group | Group Description | Pins Count |
|---|---|---|
| PCI | PCI Bus | 60 |
| ISA | ISA Bus | 88 |
| E-IDE | E-IDE Interface | 28 |
| FDD | Floppy Disk Drive Interface | 15 |
| PPI | Parallel Port Interface | 17 |
| SPI1 | Serial Port 1 Interface | 8 |
| SPI2 | Serial Port 2 Interface | 8 |
| IrDA | IrDA Interface | 2 |
| KB/MS | Keyboard and PS/2 Mouse Signals | 4 |
| USB1 | Universal Serial Bus 1 Interface | 3 |
| USB2 | Universal Serial Bus 2 Interface | 3 |
| ETH | Ethernet 10/100Mbit Interface | 6 |
| AC’97 | Audio Codec ’97 Interface | 5 |
| CRT | CRT Interface | 9 |
| FPI | Flat Panel Interface | 36 |
| FEAT | Feature Signals | 7 |
| MISC | Miscellaneous Signals | 9 |
| JTAG | JTAG/Boundary Scan Signals | 5 |
| PWR | Power and Ground Pins | 81 |
| RSVD | Reserved Pins | 6 |
| Total | 400 | |
More details about the signal definition are described in the STX Hardware Specification.
Updated 01/Nov/2001