W6694 Datasheet, PDF (13/33 Pages) Winbond – USB Bus ISDN S/T-Controller

Preliminary W6694
7.1.2 Control-OUT Transactions (Endpoint 0)
7.1.2.1 Device Clear Feature, Remote Wake-up
BmRequestType
bRequest
wValue
00H
CLEAR_FEATURE
1
wIndex
0
wLength
0
Data
None
On received this request from host, W6694 will not detect the incoming ISDN broadcast message.
7.1.2.2 Device Set Feature, Remote Wake-up
BmRequestType
00H
bRequest
SET_FEATURE
wValue
1
wIndex
0
wLength
0
Data
None
On received this request from host, W6694 will detect the incoming ISDN broadcast message. This is
default setting.
7.1.2.3 Set Interface 0, Alternate Setting 0
bmRequestType
bRequest
wValue
01H
SET_INTERFACE
0
wIndex
0
wLength
0
Data
None
On received this request from host, all endpoints except endpoint 0 are disabled. Also the B1/B2
channel FIFOs are reset and disabled. This is default setting.
7.1.2.4 Set Interface 0, Alternate Setting 1
bmRequestType
bRequest
01H
SET_INTERFACE
wValue
1
wIndex wLength
0
0
Data
None
On received this request from host, W6694 will enable the B1/B2 channel XFIFO and RFIFO.
7.1.3 Bulk-OUT Transaction (Endpoint 1)
Bulk-OUT endpoint is used to write data to register or/and index which register to be read in following
Bulk-IN transaction. A pare of two bytes (Address, Data) in Bulk-OUT data packet represents a read
or write command on one register. A maximum of 8 bytes consist one Bulk-OUT transaction. W6694
perform the read/write commands following their order in the packet.
Data packet for Bulk-OUT transaction:
Offset 0
address
1
1
data1
2
address
2
3
data2
4
address
3
5
data3
6
address
4
7
data4
Address byte will indicate the read or write action to that register, by assigning highest order bit (bit 7)
to 0 (read) or 1 (write).
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Publication Release Date: October 2000
Revision A1