ISP1506ABS ST-Ericsson Inc, ISP1506ABS Datasheet - Page 24

• Manufacturer Part Number: ISP1506ABS
• Description: IC ULPI TRANSCEIVER 24-HVQFN
• Manufacturer: ST-Ericsson Inc
• Type: Transceiverr

Specifications of ISP1506ABS

• 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
• Other names: 568-3156

NXP Semiconductors
Table 9.
ISP1506A_ISP1506B_1
Product data sheet
Command
type name
Idle
Packet
transmit
Register
write
Register read 11b
TXCMD byte format
Command code
00b
01b
10b
9.4.2 Fault detection
9.5.1 TXCMD
9.5 TXCMD and RXCMD
Table 8.
The ISP1506 supports external V
indicator signal. The indicator signal must be connected to the FAULT pin. To enable the
ISP1506 to monitor the digital fault input, the link must set the USE_EXT_VBUS_IND bit
in the OTG Control register. By default, the digital indicator is interpreted by the ISP1506
as active LOW. That is, a LOW level on FAULT indicates a V
detected. If the external fault detector provides an active HIGH digital indicator, the link
must set the IND_COMPL bit in the Interface Control register to logic 1.
Commands between the ISP1506 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[3:0] to the ISP1506 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 ISP1506, 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
result in undefined behavior.
Various TXCMD packet and register sequences are shown in later sections.
DRV_VBUS
0
1
X
Command
payload
00 0000b
00 0000b
00 XXXXb
10 1111b
XX XXXXb
10 1111b
XX XXXXb
OTG Control register power control bits
DRV_VBUS_EXT
0
0
1
Table
Rev. 01 — 30 May 2007
Command
name
NOOP
NOPID
PID
EXTW
REGW
EXTR
REGR
9. Any values other than those in
BUS
Power source used
internal and external V
internal V
external 5 V V
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 ISP1506 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.
Register read command with 6-bit immediate address.
fault detector circuits that output a digital fault
BUS
ISP1506A; ISP1506B
charge pump is enabled
BUS
supply is enabled
ULPI HS USB OTG transceiver
BUS
BUS
power sources are disabled
Table 9
fault condition has been
are illegal and will
© NXP B.V. 2007. All rights reserved.
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