UM10375 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
User manual Rev. 3 — 14 June 2011 137 of 368
NXP Semiconductors
UM10375
Chapter 10: LPC13xx USB device controller
10.4 Features
• Fully compliant with the USB 2.0 specification (full-speed).
• Supports 10 physical (5 logical) endpoints.
• Supports Control, Bulk, Interrupt and Isochronous endpoints.
• Supports SoftConnect feature.
• Double-buffer implementation for one Bulk and one Isochronous endpoint.
10.5 Fixed endpoint configuration
Table 159 shows the supported endpoint configurations. The packet size is fixed for each
type of end point.
FS Full-speed
LED Light Emitting Diode
LS Low Speed
MPS Maximum Packet Size
NAK Negative Acknowledge
PLL Phase Locked Loop
RAM Random Access Memory
SOF Start-Of-Frame
SIE Serial Interface Engine
SRAM Synchronous RAM
UDCA USB Device Communication Area
USB Universal Serial Bus
Table 158. USB related acronyms, abbreviations, and definitions used in this chapter
Acronym/abbreviation Description
Table 159. Fixed endpoint configuration
Logical
endpoint
Physical
endpoint
Endpoint type Direction Packet size
(byte)
Double-buffer
0 0 Control Out 64 No
0 1 Control In 64 No
1 2 Interrupt/Bulk Out 64 No
1 3 Interrupt/Bulk In 64 No
2 4 Interrupt/Bulk Out 64 No
2 5 Interrupt/Bulk In 64 No
3 6 Interrupt/Bulk Out 64 Yes
3 7 Interrupt/Bulk In 64 Yes
4 8 Isochronous Out 512 Yes
4 9 Isochronous In 512 Yes
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