ISP1507BBS,118 NXP Semiconductors, ISP1507BBS,118 Datasheet - Page 17

• Manufacturer Part Number: ISP1507BBS,118
• Description: RF Transceiver USB 2.0 ULPI TRNSCVR
• Manufacturer: NXP Semiconductors

Specifications of ISP1507BBS,118

• Number Of Transceivers: 1
• Esd Protection: YeskV
• Power Supply Requirement: Single
• Operating Supply Voltage (typ): 3.3V
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Pin Count: 32
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Lead Free Status / RoHS Status: Compliant
• Other names: 935285495118 ISP1507BBS-T

NXP Semiconductors
Table 5.
ISP1507A_ISP1507B_1
Product data sheet
Signal
LINESTATE0
LINESTATE1
Signal mapping during low-power mode
8.1.2 Low-power mode
Maps to
DATA0
DATA1
Table 4.
When the USB is idle, the link can place the ISP1507 into low-power mode (also called
suspend mode). In low-power mode, the data bus definition changes to that shown in
Table
register (see
signal. The ISP1507 will draw only suspend current from the V
During low-power mode, the clock on XTAL1 may be stopped. The clock must be started
again before asserting STP to exit low-power mode. After exiting low-power mode, the
ISP1507 will send an RXCMD to the link if a change was detected in any interrupt source,
and the change still exists. An RXCMD may not be sent if the interrupt condition is
removed before exiting.
For more information on low-power mode enter and exit protocols, refer to UTMI+ Low Pin
Interface (ULPI) Specification Rev. 1.1 .
Signal
name
DIR
STP
NXT
5. To enter low-power mode, the link sets the SUSPENDM bit in the FUNC_CTRL
Direction
O
O
ULPI signal description
Direction
on ISP1507
O
I
O
Section
10.1.2) to logic 0. To exit low-power mode, the link asserts the STP
Description
combinatorial LINESTATE0 directly driven by analog receiver
combinatorial LINESTATE1 directly driven by analog receiver
Rev. 01 — 19 May 2008
Signal description
Direction: Controls the direction of data bus DATA[7:0]. In synchronous
mode, the ISP1507 drives DIR to LOW by default, making the data bus
an input so that the ISP1507 can listen for TXCMDs from the link. The
ISP1507 drives DIR to HIGH only when it has data for the link. When
DIR and NXT are HIGH, the byte on the data bus contains decoded
USB data. When DIR is HIGH and NXT is LOW, the byte contains status
information called RXCMD (receive command). The only exception to
this rule is when the PHY returns register read data, where NXT is also
LOW, replacing the usual RXCMD byte. Every change in DIR causes a
turnaround cycle on the data bus, during which DATA[7:0] is not valid
and must be ignored by the link.
DIR is always asserted during low-power and serial modes.
Stop: In synchronous mode, the link drives STP to HIGH for one cycle
after the last byte of data is sent to the ISP1507. The link can optionally
assert STP to force DIR to be deasserted.
In low-power and serial modes, the link holds STP at HIGH to wake up
the ISP1507, causing the ULPI bus to return to synchronous mode.
Next: In synchronous mode, the ISP1507 drives NXT to HIGH to throttle
data. If DIR is LOW, the ISP1507 asserts NXT to notify the link to place
the next data byte on DATA[7:0] in the following clock cycle. If DIR is
HIGH, the ISP1507 asserts NXT to notify the link that a valid USB data
byte is on DATA[7:0] in the current cycle. The ISP1507 always drives an
RXCMD when DIR is HIGH and NXT is LOW, unless register read data
is to be returned to the link in the current cycle.
NXT is not used in low-power or serial mode.
…continued
ISP1507A; ISP1507B
ULPI HS USB OTG transceiver
CC
supply (see
© NXP B.V. 2008. All rights reserved.
Table
16 of 81
46).