CY7C65621 CYPRESS [Cypress Semiconductor], CY7C65621 Datasheet - Page 19

• Manufacturer Part Number: CY7C65621
• Description: EZ-USB HX2LP Lite Low Power USB 2.0 Hub Controller Family
• Manufacturer: CYPRESS [Cypress Semiconductor]

Table 6. Hub Class Requests (continued)
Table 7. Hub Class Feature Selector
Document #: 001-52934 Rev. *C
Vendor Commands
Read EEPROM
This request results in length bytes of data being read from the external memory device, and returned to the host. Data is read
beginning with address 0. This request fails if there is no external memory device present. This request is only valid if the hub is
in the Configured state; the request fails otherwise.
Write EEPROM
This request results in length bytes of data being written to the external memory device. Data is written beginning with address
0. This request fails if there is no external memory device present. This request is only valid if the hub is in the Configured state
or if the external memory device write protect byte is set; the request fails otherwise.
Note
C_HUB_LOCAL_POWER
C_HUB_OVER_CURRENT
PORT_CONNECTION
PORT_ENABLE
PORT_SUSPEND
PORT_RESET
PORT_POWER
PORT_LOW_SPEED
C_PORT_CONNECTION
C_PORT_ENABLE
C_PORT_SUSPEND
C_PORT_OVER_CURRENT
C_PORT_RESET
PORT_TEST
PORT_INDICATOR
11. Selector values for different features are presented in
Request
Feature Selector
bmRequestType bRequest
01000000B
11000000B
Recipient
Hub
Hub
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
0x02
0x01
Table 8
0x00
0x00
on page
Value
16
17
18
19
20
21
22
0
1
0
1
2
4
8
9
wValue
19.
Table 8. Test Mode Selector for Feature Selector
PORT_TEST (0x21)
Test_J
Test_K
Test_SE0_NAK
Test_Packet
Test_Force_Enable
PORT_TEST Mode Description
0x00
0x00
wIndex
Length
Length
wLength
[11]
Data
Data
CY7C65621/31
Data
Selector Value
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