ISP1507DBSUM STEricsson, ISP1507DBSUM Datasheet - Page 25

• Manufacturer Part Number: ISP1507DBSUM
• Manufacturer: STEricsson

Specifications of ISP1507DBSUM

• Lead Free Status / RoHS Status: Compliant

CD00222690
Product data sheet
Fig 7.
USE_EXT_VBUS_IND,
RXCMD A_VBUS_VLD indicator source
IND_PASSTHRU
9.5.2.3 Using and selecting the V
IND_COMPL
V
BUS
/FAULT
The V
link whenever there is a change in the V
must first enable the corresponding interrupts in the USB_INTR_EN_R_E and
USB_INTR_EN_F_E registers.
The link can use the V
shows the recommended usage for typical applications.
Table 13.
Standard USB host controllers:
500 mA on V
detect overcurrent conditions. If the external overcurrent detector provides a digital fault
signal, then the fault signal must be connected to the ISP1507 FAULT input pin, and the
link must do the following:
Standard USB peripheral controllers:
when V
start and end of USB peripheral operations. Detection of A_VBUS_VLD and SESS_END
thresholds is not needed for standard peripherals.
Application
Standard host
Standard peripheral
OTG A-device
OTG B-device
1. Set the IND_COMPL bit in the INTF_CTRL register (see
2. Set the IND_PASSTHRU bit in the INTF_CTRL register to logic 1.
3. Set the USE_EXT_VBUS_IND bit in the OTG_CTRL register (see
logic 1, depending on the polarity of the external fault signal.
logic 1.
BUS
BUS
state encoding is shown in
V
A_VBUS_VLD comparator
is at a sufficient level for operation. SESS_VLD must be enabled to detect the
BUS
BUS
indicators in RXCMD required for typical applications
in the range of 4.75 V to 5.25 V. An external circuit must be used to
A_VBUS_VLD
yes
no
yes
no
BUS
Rev. 04 — 20 May 2010
internal A_VBUS_VLD
state to monitor V
BUS
state encoding
For standard hosts, the system must be able to provide
Table
BUS
SESS_VLD
no
yes
yes
yes
Standard peripherals must be able to detect
ULPI HS USB host and peripheral transceiver
complement output
9. The ISP1507 will send an RXCMD to the
state. To receive V
BUS
ISP1507C; ISP1507D
and take appropriate action.
SESS_END
no
no
no
yes
(0, X)
(1, 1)
Section
BUS
state updates, the link
© ST-ERICSSON 2010. All rights reserved.
10.1.3) to logic 0 or
Section
RXCMD
A_VBUS_VLD
004aaa752
Table 13
10.1.4) to
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