pl-2303x Prolific Technology Inc., pl-2303x Datasheet - Page 16

• Manufacturer Part Number: pl-2303x
• Description: Pl-2303x Edition Chip Rev A Usb To Serial Bridge Controller
• Manufacturer: Prolific Technology Inc.

(4) – The value of maximum power consumption can be configured initially by setting DCR on the external EEPROM. If it is set
6.3 Interface Descriptor
6.4 Endpoint 1 Descriptor: Interrupt Input Endpoint
6.5 Endpoint 2 Descriptor: Bulk Data Output Endpoint
PL-2303XA Product Datasheet
Offset
Offset
Offset
0
1
2
3
4
5
6
7
8
0
1
2
3
4
6
0
1
2
3
4
6
to 1, the MaxPower byte will be FAh to indicate 500mA required from the USB host. Otherwise, it is 32h that indicates
100mA required.
BLength
BDescriptorType
BInterfaceNumber
BAlternateSetting
BNumEndpoints
BInterfaceClass
BInterfaceSubClass
BInterfaceProtocol
IInterface
bLength
bDescriptorType
bEndpointAddress
bmAttributes
wMaxPacketSize
bInterval
bLength
bDescriptorType
bEndpointAddress
bmAttributes
wMaxPacketSize
bInterval
Field
Field
Field
Table 6-5 Bulk Data Output Endpoint Descriptor
Table 6-4 Interrupt Input Endpoint Descriptor
Word
Word
Size
Byte
Byte
Byte
Byte
Byte
Size
Byte
Byte
Byte
Byte
Byte
Size
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Table 6-3 Interface Descriptor
000Ah
0040h
Value
Value
Value
07h
05h
81h
03h
01h
07h
05h
02h
02h
00h
FFh
09h
04h
00h
00h
03h
00h
00h
00h
- 16 -
Size of this descriptor (in bytes)
INTERFACE descriptor type
One interface only
No alternate interface
Three endpoints (excluding control endpoint)
Vendor Specific Class
Size of this descriptor (in bytes)
ENDPOINT descriptor type
Input endpoint
Transfer type is INTERRUPT
Ten Bytes
Polling on every 1 ms interval
Size of this descriptor (in bytes)
ENDPOINT descriptor type
Output endpoint
Transfer type is BULK
64 bytes
Ignored field
Description
Description
Description
ds_pl2303XA_v15F.doc
Document Version 1.5F
Revised Date:
July 4, 2006