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PDF EM2710 Data sheet ( Hoja de datos )
| Número de pieza | EM2710 | |
| Descripción | USB PC Cam Device | |
| Fabricantes | eMPIA | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de EM2710 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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EM2710
USB PC CAM Device
eMPIA Technology
Hardware Specification
EMPIA Technology Proprietary and Confidential
1
2/01/2004
1 page  
www.DataSheet4U.com
EM2710
Functional Block Diagram
ADVANCED INFORMATION
EM2710
USB
USB 2.0 PHY
SIE
Video Pipeline
Audio
Interface
Stream
Buffer
EMPIA Technology Proprietary and Confidential
5
2/1/2004
5 Page 
www.DataSheet4U.com
EM2710
ADVANCED INFORMATION
EEPROM Data Structure
EEPROM contains hardware configuration information. After reset by RN, the UVCD reads the EEPROM and
uses the information to configure the chip. The first four bytes of the EEPROM are Key to the EEPROM. If the
EEPROM is absent or the Key is invalid, the UVCD is configured with a set of default values.
Addr.
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
0AH
0BH
0CH
0DH
0EH
0FH
10H
11H
12H
Data Definition
Key Byte 0 = 1AH
Key Byte 1 = EBH
Key Byte 2 = 67H
Key Byte 3 = 95H
USB Vendor ID Low Byte
USB Vendor ID High Byte
USB Product ID Low Byte
USB Product ID High Byte
Chip Configuration Low Byte
D[7:6] Reserved. Set to 0.
D[5:4] Audio Configuration
00 – No audio on board.
01 – AC97 audio on board with 5 sample rates: 48K, 44.1K, 32K, 22.05K, and 8K.
10 – Reserved.
11 – Reserved.
D[3] USB Remote Wakeup Capable when set to 1
D[2] USB Self Power Capable when set to 1. If the chip is configured to be Self Power
Capable, PIO7 becomes self power status input.
D[1:0] USB Max Power Select
00 – USB Max Power 500 mA
01 – USB Max Power 400 mA
10 – USB Max Power 300 mA
11 – USB Max Power 200 mA
Chip Configuration High Byte
Reserved. Set to 0.
Board Configuration Low Byte
To be defined by Software Architect
Board Configuration High Byte
To be defined by Software Architect
String 1 Descriptor Pointer
Starting address of String 1 Descriptor in the EEPROM
String 1 Descriptor Length
Number of bytes of String 1 Descriptor in the EEPROM
String 2 Descriptor Pointer
Starting address of String 2 Descriptor in the EEPROM
String 2 Descriptor Length
Number of bytes of String 2 Descriptor in the EEPROM
String 3 Descriptor Pointer
Starting address of String 3 Descriptor in the EEPROM
String 3 Descriptor Length
Number of bytes of String 3 Descriptor in the EEPROM
String Index Table
D[7:6] Reserved. Set to 0.
D[5:4] Serial Number String Descriptor Index
D[3:2] Product String Descriptor Index
D[1:0] Vendor String Descriptor Index
Default
-
-
-
-
1AH
EBH
*
*
**
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
EMPIA Technology Proprietary and Confidential
11
2/1/2004
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet EM2710.PDF ] | |
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