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USB2642 데이터시트(PDF) 20 Page - Microchip Technology

부품명 USB2642
상세설명  USB 2.0 Hub and Flash Media Card Controller Combo
PDF  56 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB2642 데이터시트(HTML) 20 Page - Microchip Technology

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USB2642
DS00001578C-page 20
 2014-2015 Microchip Technology Inc.
7.4
System Configurations
7.4.1
EEPROM/SPI INTERFACE
The USB2642 can be configured via a 2-wire (I2C) EEPROM (512x8) or an external SPI flash device containing the
firmware for the USB2642. If an external configuration device does not exist the internal default values will be used. If
one of the external devices is used for configuration, the OEM can update the values through the USB interface. The
hub will then attach to the upstream USB host.
The USBDM tool set is available in the Hub Card reader combo software release package.
7.4.2
EEPROM DATA DESCRIPTOR
TABLE 7-1:
INTERNAL FLASH MEDIA CONTROLLER CONFIGURATIONS
Address
Register Name
Description
Internal Default Value
00h-19h
USB_SER_NUM
USB Serial Number
000008264001
(Unicode)
1Ah-1Bh
USB_VID
USB Card Reader
Vendor ID
0424
1Ch-1Dh
USB_PID
USB Card Reader
Product ID
4041
1Eh-21h
USB_LANG_ID
USB Language Identifier
0409
(see Note 1)
22h-5Dh
USB_MFR_STR
USB Manufacturer String
Generic
(Unicode)
5Eh-99h
USB_PRD_STR
USB Product String
Ultra Fast Media Reader
(Unicode)
9Ah
USB_BM_ATT
USB BmAttribute
80h
9Bh
USB_MAX_PWR
USB Max Power
30h (96 mA)
9Ch
ATT_LB
Attribute Lo byte
40h (Reverse SD_WP only)
9Dh
ATT_HLB
Attribute Hi Lo byte
80h (Reverse SD2_WP only)
9Eh
ATT_LHB
Attribute Lo Hi byte
00h
9Fh
ATT_HB
Attribute Hi byte
00h
A0h-A3h
rsvd
A4h
LUN_PWR_LB
LUN Power Lo byte
00h
A5h
LUN_PWR_HB
LUN Power Hi byte
0Ah
A6h-BEh
rsvd
BFh-C5h
DEV3_ID_STR
Device 3 Identifier String
SD/MMC
C6h-CDh
INQ_VEN_STR
Inquiry Vendor String
Generic
CEh-D2h
INQ_PRD_STR
48QFN Inquiry Product
String
2642
D3h
DYN_NUM_LUN
Dynamic Number of LUNs
01h
D4h-D7h
LUN_DEV_MAP
LUN to Device Mapping
FFh, 00h, 00h, 00h
D8h-DAh
rsvd



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