W6694 Datasheet, PDF (9/33 Pages) Winbond – USB Bus ISDN S/T-Controller

6. BLOCK DIAGRAM
Preliminary W6694
S/T
Interface
GCI
Bus
PCM
Codec
Interface
GCI
Control
PCM
Port
Control
Serial
BInterfac
e
Buffer
B
B
B
Channel
Switch
EEPROM
Control
IO Port
Control
USB
Bus
Serial
EEPROM
Interface
IO Port
FIG 6.1 W6694 Block Diagram
7. FUNCTIONAL DESCRIPTIONS
7.1 USB Descriptions
TAble 7.1 W6694 all USB Endpoints
END TYPE DIRECTION* MAX. PACKET SIZE
POINT
(BYTES)
0
Control
IN/OUT
1
Bulk
OUT
2
Bulk
IN
3 Interrupt
IN
4
Isoch.
OUT
5
Isoch.
IN
8/8
8
8
5
(1+3) +
(1+18) = 23
1+ (1+7) + (1+15) +
(1+15) = 41
* Direction: IN – device to host, OUT – host to device
INTERNAL BUFFER TYPE AND
SIZE
(BYTES)
8, single port x 2
8, single port x 1
8, single port x 1
5, single port x 1
96, dual port x 1
96, dual port x 1
Publication Release Date: October 2000
-9-
Revision A1