Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

CS5535-UDC Datasheet(PDF) 88 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # CS5535-UDC
Description  Geode??CS5535 I/O Companion Multi-Function South Bridge
Download  555 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

CS5535-UDC Datasheet(HTML) 88 Page - National Semiconductor (TI)

Back Button CS5535-UDC Datasheet HTML 84Page - National Semiconductor (TI) CS5535-UDC Datasheet HTML 85Page - National Semiconductor (TI) CS5535-UDC Datasheet HTML 86Page - National Semiconductor (TI) CS5535-UDC Datasheet HTML 87Page - National Semiconductor (TI) CS5535-UDC Datasheet HTML 88Page - National Semiconductor (TI) CS5535-UDC Datasheet HTML 89Page - National Semiconductor (TI) CS5535-UDC Datasheet HTML 90Page - National Semiconductor (TI) CS5535-UDC Datasheet HTML 91Page - National Semiconductor (TI) CS5535-UDC Datasheet HTML 92Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 88 / 555 page
background image
ACC Functional Description (Continued)
www.national.com
88
Revision 0.8
4.3.7.4
Programming Model
Audio Playback/Record
The following discussion explains, in steps, how to initiate
and maintain a bus master transfer between memory and
an audio slave device. In the steps, the reference to Exam-
ple refers to Figure 4-7:
1)
Software creates a PRD table in system memory. The
last PRD entry in a PRD table must have the EOT or
JMP bit set.
Example - Assume the data is outbound. There are
three PRDs in the example PRD table. The first two
PRDs (PRD_1, PRD_2) have only the EOP bit set.
The last PRD (PRD_3) has only the JMP bit set. This
example creates a PRD loop.
2)
Software loads the starting address of the PRD table
by programming the PRD Table Address register.
Example - Program the PRD Table Address register
with Address_3.
3)
Software must fill the buffers pointed to by the PRDs
with audio data. It is not absolutely necessary to fill the
buffers; however, the buffer filling process must stay
ahead of the buffer emptying. The simplest way to do
this is by using the EOP flags to generate an interrupt
when an audio buffer is empty.
Example - Fill Audio Buffer_1 and Audio Buffer_2.
Ensure than an interrupt service routine is assigned to
the audio interrupt.
4)
Read the IRQ Status register to clear the Bus Master
Error and End of Page flags (if set).
Program the AC97 codec properly to receive audio
data (mixer settings, etc.).
Engage the bus master by setting the Bus Master
Enable bit.
The bus master reads the PRD entry pointed to by the
PRD Table Address register. Using the address from
the PRD, it begins the audio transfer. The PRD Table
Address register is incremented by eight.
Example - The bus master is now properly pro-
grammed to transfer Audio Buffer_1 to a specific
slot(s) in the AC97 interface.
5)
The bus master transfers data from memory and
sends it to the AC97 Codec. At the completion of each
PRD, the bus master’s next response depends on the
settings of the flags in the PRD.
Example - After transferring the data described by
PRD_1, an interrupt is generated because the EOP bit
is set, and the bus master continues on to PRD_2. The
interrupt service routine reads the Second Level Audio
IRQ Status register to determine which bus master to
service. It refills Audio Buffer_1 and then reads the
bus master’s IRQ Status register to clear the End of
Page flag and the interrupt.
After transferring the data described by PRD_2,
another interrupt is generated because the EOP bit is
set, and the bus master continues on to PRD_3. The
interrupt service routine reads the Second Level Audio
IRQ Status register to determine which bus master to
service. It refills Audio Buffer_2 and then reads the
bus master’s IRQ Status register to clear the End of
Page flag and the interrupt.
PRD_3 has the JMP bit set. This means the bus mas-
ter uses the address stored in PRD_3 (Address_3) to
locate the next PRD. It does not use the address in the
PRD Table Address register to get the next PRD.
Since Address_3 is the location of PRD_1, the bus
master has looped the PRD table. No interrupt is gen-
erated for PRD_3.
Figure 4-7. ACC PRD Table Example
Address_1
Size_1
EOT = 0
Audio
Buffer_1
Audio
Buffer_2
Size_1
Size_2
Address_1
EOP = 1
JMP = 0
Address_2
Size_2
EOT = 0
EOP = 1
JMP = 0
Address_3
Don’t Care
EOT = 0
EOP = 0
JMP = 1
PRD_1
PRD_2
PRD_3
Address_2
Address_3


Similar Part No. - CS5535-UDC

ManufacturerPart #DatasheetDescription
logo
National Semiconductor ...
CS5530 NSC-CS5530 Datasheet
3Mb / 241P
   Geode??CS5530 I/O Companion Multi-Function South Bridge
logo
Cirrus Logic
CS5530 CIRRUS-CS5530 Datasheet
286Kb / 36P
   24-bit ADC with Ultra-low-noise Amplifier
CS5530 CIRRUS-CS5530 Datasheet
277Kb / 36P
   24-bit ADC with Ultra-low-noise Amplifier
CS5530-IS CIRRUS-CS5530-IS Datasheet
286Kb / 36P
   24-bit ADC with Ultra-low-noise Amplifier
CS5530-IS CIRRUS-CS5530-IS Datasheet
277Kb / 36P
   24-bit ADC with Ultra-low-noise Amplifier
More results

Similar Description - CS5535-UDC

ManufacturerPart #DatasheetDescription
logo
National Semiconductor ...
CS5530 NSC-CS5530 Datasheet
3Mb / 241P
   Geode??CS5530 I/O Companion Multi-Function South Bridge
CS5530A NSC-CS5530A Datasheet
4Mb / 259P
   Geode CS5530A I/O Companion Multi-Function South Bridge
logo
Integrated Silicon Solu...
IS31IO7325 ISSI-IS31IO7325 Datasheet
368Kb / 15P
   MULTI-FUNCTION I/O DRIVER
IS31IO7328 ISSI-IS31IO7328 Datasheet
380Kb / 15P
   MULTI-FUNCTION I/O DRIVER
logo
Advanced Micro Devices
CS5530A AMD-CS5530A Datasheet
2Mb / 259P
   AMD Geode CS5530A Companion Device
logo
Microchip Technology
ECE1117 MICROCHIP-ECE1117 Datasheet
1Mb / 83P
   Multi-Function BC-Link/SMBus Companion Device
07/14/15
logo
Intel Corporation
GW80314GSSL7NK INTEL-GW80314GSSL7NK Datasheet
1Mb / 88P
   Intel짰 GW80314 I/O Companion Chip
logo
National Semiconductor ...
CS9210 NSC-CS9210 Datasheet
776Kb / 39P
   Geode??CS9210 Graphics Companion DSTN Controller
logo
Contec Co., Ltd
AIO-160802L-LPE CONTEC-AIO-160802L-LPE Datasheet
503Kb / 5P
   PCI Express-compliant Multi-function Analog I/O
logo
List of Unclassifed Man...
VT8231 ETC-VT8231 Datasheet
1Mb / 132P
   SOUTH BRIDGE PC99 COMPLIANT
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com