ISP1506BBS,557 NXP Semiconductors, ISP1506BBS,557 Datasheet - Page 42
ISP1506BBS,557
Manufacturer Part Number
ISP1506BBS,557
Description
RF Transceiver USB2.0 ULPI DDR OTG
Manufacturer
NXP Semiconductors
Datasheet
1.ISP1506BBS557.pdf
(80 pages)
Specifications of ISP1506BBS,557
Operating Supply Voltage
1.65 V to 3.6 V
Mounting Style
SMD/SMT
Package / Case
HVQFN-24
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
935278349557 ISP1506BBS
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NXP Semiconductors
ISP1506A_ISP1506B_2
Product data sheet
Fig 19. Transmitting USB packets without the automatic SYNC and EOP generation
TXREADY
TXVALID
ENABLE
CLOCK
DP, DM
9.12 On-The-Go operations
STUFF
TXBIT
DATA
[3:0]
STP
NXT
DIR
PHY will not transmit any EOP. The ISP1506 will also detect if the PID byte is A5h,
indicating an SOF packet, and automatically send a long EOP when STP is asserted. To
transmit chirp and resume signaling, the link must set OPMODE to 10b.
On-The-Go (OTG) is a supplement to
that allows a portable USB device to assume the role of a limited USB host by defining
improvements, such as a small connector and low power. Non-portable devices, such as
standard hosts and embedded hosts, can also benefit from OTG features.
The ISP1506 OTG PHY is designed to support all the tasks specified in the OTG
supplement. The ISP1506 provides the front-end analog support for Host Negotiation
Protocol (HNP) and Session Request Protocol (SRP) for dual-role devices. The
supporting components include:
The following subsections describe how to use the ISP1506 OTG components.
•
•
•
•
•
TXCMD
Built-in 5 V charge pump
Voltage comparators
– A_VBUS_VLD
– SESS_VLD (session valid, can be used for both A-session and B-session valid)
– SESS_END (session end)
Pull-up and pull-down resistors on DP and DM
ID detector indicates if micro-A or micro-B plug is inserted
Charge and discharge resistors on V
IDLE
00h
00h 00h 80h PID
SYNC
Rev. 02 — 28 August 2008
PID
D1
Ref. 1 “Universal Serial Bus Specification Rev. 2.0”
D2
BUS
D3
DATA PAYLOAD
ISP1506A; ISP1506B
...
... D
N
ULPI HS USB OTG transceiver
1
D
N
FEh
EOP
© NXP B.V. 2008. All rights reserved.
IDLE
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