92hd202 Integrated Device Technology, 92hd202 Datasheet - Page 145

• Manufacturer Part Number: 92hd202
• Description: Eight Channel Hd Audio Codec
• Manufacturer: Integrated Device Technology

IDT™
92HD202
8-CHANNEL HIGH DEFINITION AUDIO CODEC
8-CHANNEL HIGH DEFINITION AUDIO CODEC
7.21.4. PCBEEP Gen
[31:8]
[7:0]
Bit
[14:8]
[6:0]
[15]
Bit
[7]
Set1
Get
Bitfield Name
Divider
Rsvd
Bitfield Name
NumSteps
Rsvd2
Rsvd1
Offset
Table 321. PCBEEP AmpCap Command Response Format
Table 323. PCBEEP Gen Command Response Format
RW
RW
R
Table 322. PCBEEP Gen Command Verb Format
Verb ID
F0A
70A
Reset
0x0
0x0
IDT CONFIDENTIAL
RW
R
R
R
R
Enable internal PC-Beep generation.
Divider = 00h - disables internal PC Beep generation and
enables normal operation of the CODEC.
When the Divider is not 00h - generates the beep tone on all
Pin Complexes that are currently configured as outputs.
The HD Audio spec states that the beep tone frequency:
F = (48 KHz HD Audio SYNC rate) / (4*Divider)
producing tones from 47 Hz to 12 KHz (logarithmic scale).
This part generates tones with frequency:
F = 48000 * (257 - Divider) / 1024
yielding a linear range from 12 KHz to 93.75 Hz in steps of
46.875 Hz.
If JackSenseVSR[Rate2x], then the beep tones generated
have frequency:
F = 48000 * (513 - Divider) / 1024
yielding a range of 24 KHz to 12093.75 Hz in steps of
46.875 Hz.
145
See bits [7:0] of bitfield table
Reset
0x03
0x03
0x0
0x0
Payload
00
Reserved
Number of steps in the gain range = 4
(-18dB to 0dB)
Reserved
0dB-step is programmed with this offset
Description
Reserved
92HD202
Description
See bitfield table
0000_0000h
Response
REV 1.2 112006
PC AUDIO