OM11077 NXP Semiconductors, OM11077 Datasheet - Page 416

• Manufacturer Part Number: OM11077
• Description: MODULE DIMM LPC2478 ARM7
• Manufacturer: NXP Semiconductors

Specifications of OM11077

• Accessory Type: Module Card
• For Use With/related Products: ARM-57TS-LPC2478
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-4742

NXP Semiconductors
UM10237_4
User manual
Fig 62. Hardware support for A-device switching from host state to peripheral state
yes
Figure 15–63
the hardware actions setting TMR, HNP_SUCCESS, and HNP_FAILURE. The
relationship of the software actions to the Dual-Role A-Device states is also shown.
A-device states are shown in bold font with a circle around them.
no
bus reset detected?
bus suspended ?
no
no
yes
no
shows the actions that the OTG software stack should take in response to
disconnect host controller from U1
connect device to U1 by clearing
A_HNP_TRACK = 1 ?
A_HNP_TRACK = 0
OTG timer expired?
clear A_HNP_TRACK
set HNP_SUCCESS
Rev. 04 — 26 August 2009
PORT_FUNC[0]
(TMR =1 )
idle
yes
resume detected ?
resume detected?
yes
Chapter 15: LPC24XX USB OTG controller
no
connnect host controller back to U1
no
clear A_HNP_TRACK
set HNP_FAILURE,
yes
UM10237
© NXP B.V. 2009. All rights reserved.
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