isp1507a NXP Semiconductors, isp1507a Datasheet - Page 29

• Manufacturer Part Number: isp1507a
• Description: Lpi Hi-speed Universal Serial Bus On-the-go Transceive
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 13.
DP_PULLDOWN and DM_PULLDOWN = 1.
[1]
ISP1507A_ISP1507B_1
Product data sheet
Mode
XCVRSELECT[1:0]
TERMSELECT
OPMODE[1:0]
LINESTATE[1:0]
!squelch indicates inactive squelch. !HS_Differential_Receiver_Output indicates inactive HS_Differential_Receiver_Output.
LINESTATE[1:0] encoding for downstream facing ports: host
9.5.2.2 V
00
01
10
11
USB devices must monitor the V
starting a session and SRP. The V
voltage level on V
The SESS_END and SESS_VLD indicators in the V
internal comparators built-in to the ISP1507, and encoded as shown in
Table
Table 14.
The A_VBUS_VLD indicator in the V
configured based on current draw requirements. A_VBUS_VLD can input from one or
more V
A description on how to use and select the V
Section
Value
00
01
10
11
BUS
Low-speed
10
1
X
SE0
LS-K
LS-J
SE1
state encoding
14.
BUS
9.5.2.3.
V
V
V
V
V
BUS
BUS
B_SESS_END
B_SESS_VLD
BUS
Encoded V
voltage indicators, as shown in
< V
voltage
V
[1]
Full-speed
01, 11
1
X
SE0
FS-J
FS-K
SE1
B_SESS_END
A_VBUS_VLD
BUS
.
BUS
V
V
Rev. 01 — 19 May 2008
BUS
BUS
voltage state
< V
< V
High-speed
00
0
00, 01 or 11
squelch
!squelch
invalid
invalid
A_VBUS_VLD
B_SESS_VLD
BUS
BUS
voltage for purposes such as overcurrent detection,
BUS
state field in the RXCMD is an encoding of the
state provides several options and must be
Figure
BUS
Chirp
00
0
10
squelch
!squelch and HS_Differential_Receiver_Output
!squelch and !HS_Differential_Receiver_Output
invalid
ISP1507A; ISP1507B
SESS_END
1
0
X
X
state encoding is given in
11.
BUS
state are directly taken from
ULPI HS USB OTG transceiver
SESS_VLD
0
0
1
X
© NXP B.V. 2008. All rights reserved.
Table 11
A_VBUS_VLD
0
0
0
1
and
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