ISP1506ABS-T ST-Ericsson Inc, ISP1506ABS-T Datasheet - Page 42

• Manufacturer Part Number: ISP1506ABS-T
• Description: IC USB TXRX HS 24-HVQFN
• Manufacturer: ST-Ericsson Inc
• Type: Transceiverr

Specifications of ISP1506ABS-T

• Number Of Drivers/receivers: 1/1
• Protocol: USB 2.0
• Voltage - Supply: 1.65 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 24-VQFN Exposed Pad, 24-HVQFN, 24-SQFN, 24-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
ISP1506A_ISP1506B_1
Product data sheet
9.12.1 OTG charge pump
9.12.2 OTG comparators
9.12.3 Pull-up and pull-down resistors
9.12.4 ID detection
9.12.5 V
9.13 Serial mode
A description of the charge pump is given in
configured as an A-device, it can provide the V
Control of the charge pump is described in
The ISP1506 provides comparators that conform to
USB 2.0 Specification Rev. 1.2”
and V
V
are communicated to the link by RXCMDs as described in
comparators is described in
The USB resistors on DP and DM can be used to initiate data-line pulsing SRP. The link
must set the required bus state using mode settings in
The ISP1506 provides an internal pull-up resistor to sense the value of the ID pin. The
pull-up resistor must first be enabled by setting the ID_PULLUP register bit to logic 1. If
the value on ID has changed, the ISP1506 will send an RXCMD or interrupt to the link by
time t
not changed.
A pull-up resistor, R
allowed to charge V
the V
A pull-down resistor, R
whenever the A-device turns off the V
resistor to ensure V
For details, refer to
The ISP1506 supports 3-pin serial mode, controlled by bit 3PIN_FSLS_SERIAL of the
Interface Control register. For details, refer to
Specification Rev.
Figure 20
B_SESS_VLD
BUS
BUS
ID
B_SESS_END
charge and discharge resistors
. If the link does not receive any RXCMD or interrupt by t
power.
provides an example of 3-pin serial mode.
. Comparators are described in
. In this data sheet, V
1.1”, Section 3.10.
Ref. 2 “On-The-Go Supplement to the USB 2.0 Specification Rev.
BUS
UP(VBUS)
BUS
DN(VBUS)
Rev. 01 — 30 May 2007
is below V
above the session valid threshold to request the host to turn on
, is provided to perform V
Section 10.1.5
, is provided for a B-device to discharge V
requirements of V
B_SESS_END
BUS
A_SESS_VLD
power; the B-device can use the pull-down
Section 9.4.1
to
Section
Section
ISP1506A; ISP1506B
Ref. 3 “UTMI+ Low Pin Interface (ULPI)
before starting a session.
Section
BUS
and V
A_VBUS_VLD
power by turning on the charge pump.
Ref. 2 “On-The-Go Supplement to the
7.6.2. Changes in comparator values
7.6.4. When the controller is
BUS
10.1.8.
Table
B_SESS_VLD
ULPI HS USB OTG transceiver
and
pulsing SRP. A B-device is
Section
7.
, V
Section
A_SESS_VLD
ID
, then the ID value has
9.5.2.2. Control over
are combined into
10.1.4.
© NXP B.V. 2007. All rights reserved.
BUS
, V
. This is done
B_SESS_VLD
42 of 79
1.2”.