![](http://datasheet.mmic.net.cn/280000/HMS30C7202N_datasheet_16073790/HMS30C7202N_98.png)
HMS30C7202N
2004 MagnaChip Semiconductor Ltd. All Rights Reserved. Version 1.1
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h08
h09
h0a
h0b
h0c
h0d
h0e
h0f
h10
h11
hB4
h05
h02
h72
h01
h00
h00
h00
h00
h01
vendor id
vendor id (05b4) for HME
product id
product id (7210) for HME7210
device release #
device release #
manufacturer index string
product index string
serial number index string
number of configurations
YES
YES
YES
YES
* DEVID register has 32-bit width and it covers vendor id to product id (offset from h08 to h0b): DEVID [31:24]
* DEVCLASS register has 24-bit width and it covers device class to vendor specific protocol (offset from h04 to
h06): DEVCLASS [23:16] – h06, DEVCLASS [15:8] – h05, DEVCLASS [7:0] – h04
[CONFIGURATION DESCRIPTOR]
OFFSET (BYTE)
INITIAL VALUE
DESCRIPTION
h00
h09
Length of this descriptor
h01
h02
CONFIGURATION (2)
h02
h20
Total length includes endpoint descriptors
h03
h00
Total length high byte
h04
h01
Number of interfaces
h05
h01
Configuration value for this one
h06
h00
Configuration - string
h07
h80
Attributes - bus powered, no wakeup
h08
h32
Max power - 100 ma is 50 (32 hex)
ADJUSTABLE
h09
h0a
h0b
h0c
h0d
h0e
h0f
h10
h11
h09
h04
h00
h00
h02
hFF
hFF
hFF
h00
Length of the interface descriptor
INTERFACE (4)
Zero based index 0f this interface
Alternate setting value ()
Number of endpoints (not counting 0)
Interface class, ff is vendor specific
Interface sub-class
Interface protocol
Index to string descriptor for this interface
YES
YES
YES
h12
h13
h14
h15
h16
h17
h18
h07
h05
h01
h02
h20
h00
h00
Length of this endpoint descriptor
ENDPOINT (5)
Endpoint direction (00 is out) and address
Transfer type – h02 = BULK
Max packet size - low : 32 byte
Max packet size - high
Polling interval in milliseconds (1 for iso)
h19
h1a
h1b
h1c
h1d
h1e
h1f
h07
h05
h82
h02
h20
h00
h00
Length of this endpoint descriptor
ENDPOINT (5)
Endpoint direction (80 is in) and address
Transfer type – h02 = BULK
Max packet size - low : 32 byte
Max packet size - high
Polling interval in milliseconds (1 for iso)
* see USB spec. 1.1 (9.6 Standard USB Descriptor Definitions) for more detail
* The descriptor has 4 parts : Configuration, Interface, Endpoint1, Endpoint2 (doubled lines)