ISP1507B1HNTM STEricsson, ISP1507B1HNTM Datasheet - Page 25

• Manufacturer Part Number: ISP1507B1HNTM
• Manufacturer: STEricsson

Specifications of ISP1507B1HNTM

• Lead Free Status / RoHS Status: Compliant

Table 10.
CD00269905
Product data sheet
Command
type name
Idle
Packet
transmit
TXCMD byte format
10.4.1 Driving 5 V on V
10.4.2 Fault detection
10.5.1 TXCMD
Command code
DATA[7:6]
00b
01b
10.4 V
10.5 TXCMD and RXCMD
The ISP1507x1 also supports external 5 V supplies. The ISP1507x1 can control the
external supply using the active-LOW PSW_N open-drain output pin. To enable the
external supply by driving PSW_N to LOW, the link must set the DRV_VBUS_EXT bit in
the OTG_CTRL register to logic 1.
Table 9
Table 9.
The ISP1507x1 supports external V
indicator signal. The indicator signal must be connected to the FAULT pin. To enable the
ISP1507x1 to monitor the digital fault input, the link must set the USE_EXT_VBUS_IND
bit in the OTG_CTRL register (see
INTF_CTRL register (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 ISP1507x1 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 ISP1507x1 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 ISP1507x1, 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
illegal and may result in undefined behavior.
Various TXCMD packet and register sequences are shown in later sections.
DRV_VBUS_EXT
0
1
BUS
power and fault detection
summarizes settings to drive 5 V on V
Command payload
DATA[5:0]
00 0000b
00 0000b
00 XXXXb
OTG_CTRL register power control bits
BUS
Rev. 03 — 26 July 2010
Power source used
external V
external 5 V V
Section
Command
name
NOOP
NOPID
PID
Table
BUS
11.1.3) to logic 1. For details, see
Section
BUS
BUS
power sources are disabled
10. Any values other than those in
fault detector circuits that output a digital fault
ISP1507A1; ISP1507B1
supply is enabled
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 ISP1507x1 starts
transmitting only after accepting the next data byte.
Transmit USB packet. DATA[3:0] indicates USB
packet identifier PID[3:0].
11.1.4) and the IND_PASSTHRU bit in the
BUS
.
ULPI HS USB OTG transceiver
© ST-ERICSSON 2010. All rights reserved.
Figure
Table 10
9.
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