isp1505a NXP Semiconductors, isp1505a Datasheet - Page 31

• Manufacturer Part Number: isp1505a
• Description: Isp1505a; Isp1505c Ulpi Hi-speed Universal Serial Bus Host And Peripheral Transceiver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
ISP1505A_ISP1505C_1
Product data sheet
Fig 9. USB reset and high-speed detection handshake (chirp) sequence
SELECT
SELECT
SELECT
SELECT
Timing is not to scale.
STATE
STATE
MODE
MODE
XCVR
TERM
XCVR
TERM
DATA
DATA
LINE
LINE
[ 7:0 ]
[ 7:0 ]
NXT
STP
NXT
STP
DIR
DIR
DM
OP
OP
DP
00 (normal)
01 (FS)
J (01b)
J (01b)
(REGW) SE0
TXCMD
00 (normal)
USB reset
T
0
SE0
01 (FS)
SE0 (00b)
SE0 (00b)
(REGW)
TXCMD
K
TXCMD
NOPID
peripheral chirp K (10b)
peripheral chirp K (10b)
K
Rev. 01 — 19 October 2006
K
peripheral chirp
...
K
high-speed detection handshake (chirp)
01 (chirp)
10 (chirp)
00 (HS)
00 (HS)
squelch
squelch
(00b)
00
(00b)
00
ULPI HS USB host and peripheral transceiver
TXCMD
K
NOPID
ISP1505A; ISP1505C
host chirp K or J (10b or 01b)
host chirp K (10b) or chirp J (01b)
J
RXCMDs
K
K
J
host chirp
J
...
K
K
J
J
(REGW)
TXCMD
(REGW)
TXCMD
!squelch
(01b)
© NXP B.V. 2006. All rights reserved.
00 (normal)
squelch (00b)
squelch (00b)
00
00 (normal)
HS idle
004aaa711
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