isp1504a1 NXP Semiconductors, isp1504a1 Datasheet - Page 28

• Manufacturer Part Number: isp1504a1
• Description: Isp1504a1; Isp1504c1 Ulpi Hi-speed Universal Serial Bus On-the-go Transceiver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 13.
DP_PULLDOWN and DM_PULLDOWN = 1.
[1]
ISP1504A1_ISP1504C1_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 ISP1504x1, 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
A_SESS_VLD
BUS
Encoded V
voltage indicators, as shown in
< V
voltage
V
[1]
B_SESS_END
A_VBUS_VLD
BUS
Full-speed
01, 11
1
X
SE0
FS-J
FS-K
SE1
.
BUS
V
Rev. 01 — 6 August 2007
V
BUS
BUS
voltage state
< V
< V
A_VBUS_VLD
High-speed
00
0
00, 01 or 11
squelch
!squelch
invalid
invalid
A_SESS_VLD
BUS
BUS
voltage for purposes such as overcurrent detection,
BUS
state field in the RXCMD is an encoding of the
ISP1504A1; ISP1504C1
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
SESS_END
1
0
X
X
state encoding is given in
10.
BUS
state are directly taken from
ULPI HS USB OTG transceiver
SESS_VLD
0
0
1
X
© NXP B.V. 2007. All rights reserved.
Table 11
A_VBUS_VLD
0
0
0
1
and
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