CS5530A datasheet(40/259 Pages) AMD

40 / 259 page

AMD Geode™ CS5530A Companion Device Data Book

Signal Definitions

Revision 1.1

GPIO1/

SDATA_IN2

AE24

I/O

General Purpose I/O 1 or Serial Data Input 2

This pin can function either as a general purpose I/O or as a second serial

data input pin if two codecs are used in the system.

In order for this pin to function as SDATA_IN2, it must first be configured as

an input (F0 Index 90h[1] = 0). Then setting F3BAR+Memory Offset 08h[21]

= 1 selects the pin to function as SDATA_IN2.

Refer to GPIO[3:2] signal description for GPIO function description.

GPIO0

AC22

I/O

General Purpose I/O 0

Refer to GPIO[3:2] signal description for GPIO function description.

3.2.9

Game Port and General Purpose I/O Interface (Continued)

Signal Name

No.

Type

Description

3.2.10

Audio Interface

Signal Name

No.

Type

Description

BIT_CLK

Audio Bit Clock

The serial bit clock from the codec.

SDATA_OUT

Serial Data I/O

This output transmits audio serial data to the codec.

SDATA_IN

Serial Data Input

This input receives serial data from the codec.

SYNC

Serial Bus Synchronization

This bit is asserted to synchronize the transfer of data between the

CS5530A and the AC97 codec.

PC_BEEP

PC Beep

Legacy PC/AT speaker output.

3.2.11

Display Interface

Signal Name

No.

Type

Description

Pixel Port

PCLK

A13

Pixel Clock

This clock is used to sample data on the PIXEL input port. It runs at the

graphics DOT clock (DCLK) rate.

PIXEL[23:0]

Refer

Table

3-3

Pixel Data Port

This is the input pixel data from the processor’s display controller. If

F4BAR+Memory Offset 00h[29] is reset, the data is sent in RGB 8:8:8 for-

mat. Otherwise, the pixel data is sent in RGB 5:6:5 format which has been

dithered by the processor. The other eight bits are used in conjunction with

VID_DATA[7:0] to provide 16-bit video data. This bus is sampled by the

PCLK input.

CS5530A Datasheet(PDF) 40 Page - Advanced Micro Devices

CS5530A Datasheet(HTML) 40 Page - Advanced Micro Devices

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

Link URL