Root/Documentation/ics932s401

1Kernel driver ics932s401
2======================
3
4Supported chips:
5  * IDT ICS932S401
6    Prefix: 'ics932s401'
7    Addresses scanned: I2C 0x69
8    Datasheet: Publically available at the IDT website
9
10Author: Darrick J. Wong
11
12Description
13-----------
14
15This driver implements support for the IDT ICS932S401 chip family.
16
17This chip has 4 clock outputs--a base clock for the CPU (which is likely
18multiplied to get the real CPU clock), a system clock, a PCI clock, a USB
19clock, and a reference clock. The driver reports selected and actual
20frequency. If spread spectrum mode is enabled, the driver also reports by what
21percent the clock signal is being spread, which should be between 0 and -0.5%.
22All frequencies are reported in KHz.
23
24The ICS932S401 monitors all inputs continuously. The driver will not read
25the registers more often than once every other second.
26
27Special Features
28----------------
29
30The clocks could be reprogrammed to increase system speed. I will not help you
31do this, as you risk damaging your system!
32

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