Universal Serial Bus Controller User's Guide

4.5 USB Interrupt Source Register (INTSRCR)
www.ti.com Registers
The USB Interrupt Source Register (INTSRCR) is shown in Figure 20 and described in Table 21 .
Figure 20. USB Interrupt Source Register (INTSRCR)
31 25 24 16
Reserved USB
R-0 R-0
15 13 12 8 7 5 4 0
Reserved RX Reserved TX
R-0 R-0 R-0 R-0
LEGEND: R = Read only; - n = value after reset
Table 21. USB Interrupt Source Register (INTSRCR) Field Descriptions
Bit Field Value Description
31-25 Reserved 0 Reserved
24-16 USB 0-1FFh USB interrupt sources
Generated by the USB core (not the DMA)
15-13 Reserved 0 Reserved
12-8 RX 0-1Fh Receive endpoint interrupt sources
Generated by the USB core (not the DMA)
7-5 Reserved 0 Reserved
4-0 TX 0-Fh Transmit endpoint interrupt sources
Generated by the USB core (not the DMA)
SPRUGH3 – November 2008 Universal Serial Bus (USB) Controller 85
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