isp1504a1 NXP Semiconductors, isp1504a1 Datasheet - Page 27

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

NXP Semiconductors
Table 11.
Table 12.
DP_PULLDOWN = 0.
[1]
ISP1504A1_ISP1504C1_1
Product data sheet
DATA
1 to 0
3 to 2
5 to 4
6
7
Mode
XCVRSELECT[1:0]
TERMSELECT
LINESTATE[1:0]
Fig 9. Single and back-to-back RXCMDs from the ISP1504x1 to the link
!squelch indicates inactive squelch. !HS_Differential_Receiver_Output indicates inactive HS_Differential_Receiver_Output.
DATA [ 7:0 ]
Name
LINESTATE LINESTATE signals: For a definition of LINESTATE, see
V
RxEvent
ID
ALT_INT
CLOCK
BUS
RXCMD byte format
LINESTATE[1:0] encoding for upstream facing ports: peripheral
NXT
STP
DIR
9.5.2.1 Linestate encoding
state
[1]
00
01
10
11
Description and value
DATA0 — LINESTATE[0]
DATA1 — LINESTATE[1]
Encoded V
Encoded USB event signals: For an explanation of RxEvent, see
Set to the value of the ID pin.
By default, this signal is not used and is not needed in typical designs. Optionally, the link can
enable the BVALID_RISE and/or BVALID_FALL bits in the Power Control register. Corresponding
changes in BVALID will cause an RXCMD to be sent to the link with the ALT_INT bit asserted.
LINESTATE[1:0] reflects the current state of DP and DM. Whenever the ISP1504x1
detects a change in DP or DM, an RXCMD will be sent to the link with the new
LINESTATE[1:0] value. The value given on LINESTATE[1:0] depends on the setting of
various registers.
which applies to peripherals.
downstream facing ports, which applies to Host Controllers. Dual-role devices must
choose the correct table, depending on whether it is in peripheral or host mode.
turnaround
Full-speed
01, 11
1
SE0
FS-J
FS-K
SE1
BUS
voltage state: For an explanation of the V
Single RXCMD
RXCMD
Table 12
Rev. 01 — 6 August 2007
High-speed
00
0
squelch
!squelch
invalid
invalid
turnaround
shows the LINESTATE[1:0] encoding for upstream facing ports,
Table 13
shows the LINESTATE[1:0] encoding for
Chirp
00
1
squelch
!squelch and HS_Differential_Receiver_Output
!squelch and !HS_Differential_Receiver_Output
invalid
ISP1504A1; ISP1504C1
turnaround
Section
BUS
Back-to-back RXCMDs
RXCMD
state, see
ULPI HS USB OTG transceiver
9.5.2.1.
Section
RXCMD
Section
9.5.2.4.
© NXP B.V. 2007. All rights reserved.
turnaround
9.5.2.2.
004aaa695
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