NXP Semiconductors LPC1311 User Manual

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User manual Rev. 3 — 14 June 2011 143 of 368
NXP Semiconductors
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Chapter 10: LPC13xx USB device controller
[1] Reset value reflects the data stored in used bits only. It does not include reserved bits content.
[2] Reading WO register will return an invalid value.
10.10.1 Device interrupt registers
10.10.1.1 USB Device Interrupt Status register (USBDevIntSt - 0x4002 0000)
The USBDevIntSt register holds the status of each interrupt whether it is enabled or not. A
0 indicates no interrupt and 1 indicates the presence of the interrupt. USBDevIntSt is a
read only register.
Table 162. Register overview: USB device (base address 0x4002 0000)
Name Access Address
offset
Description Reset value
Device interrupt registers
USBDevIntSt RO 0x00 USB Device Interrupt Status 0x0000 0010
USBDevIntEn R/W 0x04 USB Device Interrupt Enable 0x0000 0000
USBDevIntClr WO 0x08 USB Device Interrupt Clear 0x0000 0000
USBDevIntSet WO 0x0C USB Device Interrupt Set 0x0000 0000
SIE command registers
USBCmdCode WO 0x10 USB Command Code 0x0000 0000
USBCmdData RO 0x14 USB Command Data 0x0000 0000
USB data transfer registers
USBRxData RO 0x18 USB Receive Data 0x0000 0000
USBTxData WO 0x1C USB Transmit Data 0x0000 0000
USBRxPLen RO 0x20 USB Receive Packet Length 0x0000 0000
USBTxPLen WO 0x24 USB Transmit Packet Length 0x0000 0000
USBCtrl R/W 0x28 USB Control 0x0000 0000
Miscellaneous registers
USBDevFIQSel WO 0x2C USB Device FIQ select 0x00
Table 163. USB Device Interrupt Status register (USBDevIntSt - address 0x4002 0000) bit
description
Bit Symbol Description Reset
value
0 FRAME The frame interrupt occurs every 1 ms. This is used in
isochronous packet transfers.
0 = no interrupt.
1 = interrupt pending.
-
1 EP0 USB core interrupt for physical endpoint 0.
0 = no interrupt.
1 = interrupt pending.
-
2 EP1 USB core interrupt for physical endpoint 1.
0 = no interrupt.
1 = interrupt pending.
-
3 EP2 USB core interrupt for physical endpoint 2.
0 = no interrupt.
1 = interrupt pending.
-

NXP Semiconductors LPC1311 Specifications

General

Brand	NXP Semiconductors
Model	LPC1311
Category	Controller
Language	English