Figure 13–47, Nxp semiconductors, Chapter 13: lpc24xx usb device controller – NXP Semiconductors LPC24XX UM10237 User Manual
Page 362: Fig 47. interrupt event handling
UM10237_4
© NXP B.V. 2009. All rights reserved.
User manual
Rev. 04 — 26 August 2009
362 of 792
NXP Semiconductors
UM10237
Chapter 13: LPC24XX USB device controller
For simplicity, USBDevIntEn and USBDMAIntEn are not shown.
Fig 47. Interrupt event handling
USB_INT_REQ_HP
USB_INT_REQ_LP
USB_INT_REQ_DMA
EN_USB_INTS
to VIC
channel
#22
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
FRAME
EP_FAST
EP_SLOW
USBDevIntPri[0]
USBDevIntPri[1]
USBEpIntPri[n]
USBEpIntSt
USBDMARSt
to DMA engine
interrupt
event on
EPn
n
n
.
.
.
.
0
31
.
.
.
.
0
31
.
.
.
.
0
31
USBEoTIntST
USBNDDRIntSt
USBSysErrIntSt
EOT
NDDR
ERR
USBDevIntSt
USBIntSt
USBEpIntEn[n]
from other
Endpoints
USBDMAIntSt
Slave mode
DMA Mode
ERR_INT