ISP1507D1HNUM STEricsson, ISP1507D1HNUM Datasheet - Page 22

• Manufacturer Part Number: ISP1507D1HNUM
• Manufacturer: STEricsson

Specifications of ISP1507D1HNUM

• Lead Free Status / RoHS Status: Compliant

Table 9.
CD00269906
Product data sheet
Command
type name
Idle
Packet
transmit
Register
write
Register
read
TXCMD byte format
Command code
DATA[7:6]
00b
01b
10b
11b
10.5.1 TXCMD
10.5.2 RXCMD
10.5 TXCMD and RXCMD
The ISP1507D1 supports external V
indicator signal. The indicator signal must be connected to the V
the ISP1507D1 to monitor the digital fault input, the link must set the
USE_EXT_VBUS_IND bit in the OTG_CTRL register (see
IND_PASSTHRU bit in the INTF_CTRL register (see
details, see
The FAULT input pin is mapped to the A_VBUS_VLD bit in RXCMD. Any changes for the
FAULT input will trigger RXCMD carrying the FAULT condition with A_VBUS_VLD.
Commands between the ISP1507D1 and the link are described in the following
subsections.
By default, the link must drive the ULPI bus to its idle state of 00h. To send commands and
USB packets, the link drives a nonzero value on DATA[7:0] to the ISP1507D1 by sending
a byte called TXCMD. Commands include USB packet transmissions, and register reads
and writes. Once the TXCMD is interpreted and accepted by the ISP1507D1, the NXT
signal is asserted and the link can follow up with the required number of data bytes. The
TXCMD byte format is given in
and may result in undefined behavior.
Various TXCMD packet and register sequences are shown in later sections.
The ISP1507D1 communicates status information to the link by asserting DIR and
sending an RXCMD byte on the data bus. The RXCMD data byte format is given in
Table
10.
Command
payload DATA[5:0]
00 0000b
00 0000b
00 XXXXb
10 1111b
XX XXXXb
10 1111b
XX XXXXb
Figure
7.
Rev. 03 — 28 July 2010
Command
name
NOOP
NOPID
PID
EXTW
REGW
EXTR
REGR
Table
BUS
9. Any values other than those in
Register read command with 6-bit immediate address.
Command description
No operation. 00h is the idle value of the data bus. The
link must drive NOOP by default.
Transmit USB data that does not have a PID, such as
chirp and resume signaling. The ISP1507D1 starts
transmitting only after accepting the next data byte.
Transmit USB packet. DATA[3:0] indicates USB packet
identifier PID[3:0].
Extended register write command (optional). The 8-bit
address must be provided after the command is
accepted.
Register write command with 6-bit immediate address.
Extended register read command (optional). The 8-bit
address must be provided after the command is
accepted.
fault detector circuits that output a digital fault
ULPI HS USB host and peripheral transceiver
Section
Section
11.1.3) to logic 1. For
BUS
ISP1507D1
11.1.4) and the
/FAULT pin. To enable
© ST-ERICSSON 2010. All rights reserved.
Table 9
are illegal
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