ISP1507BBS ST-Ericsson Inc, ISP1507BBS Datasheet - Page 16
![IC, TRANSCEIVER, USB OTG, 32HVQFN](/photos/19/0/190010/42557130_sml.jpg)
ISP1507BBS
Manufacturer Part Number
ISP1507BBS
Description
IC, TRANSCEIVER, USB OTG, 32HVQFN
Manufacturer
ST-Ericsson Inc
Datasheet
1.ISP1507BBS.pdf
(81 pages)
Specifications of ISP1507BBS
Usb Type
USB Transceiver
Usb Version
2.0
Data Rate
12Mbps
No. Of Ports
1
Supply Voltage Range
3V To 3.6V
Operating Temperature Range
-40°C To +85°C
Digital Ic Case Style
QFN
No. Of Pins
32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ISP1507BBSTM
Manufacturer:
SEMIKRON
Quantity:
22
8. Modes of operation
CD00222689
Product data sheet
8.1.1 Synchronous mode
8.1 ULPI modes
The ISP1507 ULPI bus can be programmed to operate in four modes. Each mode
reconfigures the signals on the data bus as described in the following subsections. Setting
more than one mode will lead to undefined behavior.
This is default mode. At power-up, and when CLOCK is stable, the ISP1507 will enter
synchronous mode. The link must synchronize all ULPI signals to CLOCK, meeting the
set-up time and the hold time as defined in
behavior in synchronous mode is given in
This mode is used by the link to perform the following tasks:
For more information on various synchronous mode protocols, see
Table 4.
Signal
name
CLOCK
DATA[7:0] I/O
•
•
•
•
High-speed detection handshake (chirp)
Transmit and receive USB packets
Read and write to registers
Receive USB status updates (RXCMDs)
ULPI signal description
Direction
on ISP1507
O
Rev. 04 — 20 May 2010
Signal description
60 MHz interface clock. If a crystal is attached or a clock is driven into
the XTAL1 pin, the ISP1507 will drive a 60 MHz output clock.
8-bit data bus. In synchronous mode, the link drives DATA[7:0] to LOW
by default. The link initiates transfers by sending a nonzero data pattern
called TXCMD (transmit command). In synchronous mode, the direction
of DATA[7:0] is controlled by DIR. Contents of DATA[7:0] lines must be
ignored for exactly one clock cycle whenever DIR changes value. This
is called the turnaround cycle.
Data lines have fixed direction and different meaning in low-power and
serial modes.
Table
Section
ISP1507A; ISP1507B
4.
15. A description of the ULPI pin
ULPI HS USB OTG transceiver
Section
© ST-ERICSSON 2010. All rights reserved.
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