ISP1705AETTM STEricsson, ISP1705AETTM Datasheet - Page 39

• Manufacturer Part Number: ISP1705AETTM
• Manufacturer: STEricsson

Specifications of ISP1705AETTM

• Lead Free Status / RoHS Status: Compliant

ISP1705_2
Product data sheet
Fig 15. USB reset and high-speed detection handshake (chirp) sequence
SELECT
SELECT
SELECT
SELECT
STATE
STATE
Timing is not to scale.
MODE
MODE
TERM
TERM
XCVR
XCVR
DATA
DATA
LINE
LINE
NXT
NXT
[7:0]
STP
[7:0]
STP
DIR
DIR
DM
OP
OP
DP
00 (normal)
01 (FS)
J (01b)
J (01b)
(REGW) SE0
TXCMD
00 (normal)
USB reset
t0
SE0
01 (FS)
SE0 (00b)
SE0 (00b)
(REGW)
TXCMD
K
TXCMD
NOPID
peripheral chirp K (10b)
peripheral chirp K (10b)
K
Rev. 02 — 21 January 2009
K
peripheral chirp
...
K
high-speed detection handshake (chirp)
01 (chirp)
10 (chirp)
00 (HS)
squelch
00 (HS)
squelch
(00b)
00
(00b)
00
TXCMD
K
NOPID
host chirp K or J (10b or 01b)
host chirp K (10b) or chirp J (01b)
J
RXCMDs
K
K
J
ULPI Hi-Speed USB transceiver
host chirp
J
...
K
K
J
J
(REGW)
© ST-NXP Wireless 2009. All rights reserved.
TXCMD
(REGW)
TXCMD
!squelch
(01b)
ISP1705
00 (normal)
squelch (00b)
squelch (00b)
00
00 (normal)
HS idle
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