Philips Semiconductors
UM10016_3
ISP1581 Hi-Speed USB MPEG2 Encoder Reference Kit
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
User manual
Rev. 03.00 — 12 April 2004
15 of 28
7.5. USB Device Endpoints
In the USB environment, pipes or endpoints are used for transferring data and commands. Each
endpoint performs a task, such as, enumeration, configuration and vendor-specific device
requests handling, and data streaming signaling the host. See Table 7-1 for endpoint types.
Table 7-1: Endpoint Types
7.6. Power
Supply
Figure 7-2: Polarity of the DC Power Supply Plug (Self-Powered Mode)
The demo board is designed to be self-powered. A DC power supply with 12 V, 1 amp is
required.
8. Connector Pin information
Table 8-1: CON5 In-System Programming Port
Table 8-2: CON3 DC Power Supply Input Port (DC Jack)
Table 8-3: CON6 USB Port
Endpoint
Transfer Mode
Direction
0
Control
IN or OUT
1 Bulk IN
Pin
Name
Description
1
3V3D
3.3 V DC power supply
2
TDO
Serial data output for all JTAG instructions and data registers
3
TCK
JTAG test clock
4
TMS
Mode input signal
5
TDI
Serial data Input for all JTAG instructions and data registers
6 DGND Digital
ground
Pin
Name
Description
1
12V VCC
12 V DC power supply input
2 DGND Digital
ground
3 DGND Digital
ground
Pin
Name
Description
1 VBUS
V
BUS
is nom5 V at the source
2
USB D–
Negative differential signal of USB
3
USB D+
Positive differential signal of USB
4 DGND Digital
ground
5-6 SHIELD Shield
ground
12 V
