USB Registers
16.5.1.5 IRQENABLER Register (offset = 2Ch) [reset = 0h]
IRQENABLER is shown in
and described in
Figure 16-26. IRQENABLER Register
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
Reserved
RX_PKT_CMP_1
TX_PKT_CMP_1
RX_PKT_CMP_0
TX_PKT_CMP_0
R/W-0h
R/W-0h
R/W-0h
R/W-0h
7
6
5
4
3
2
1
0
Reserved
PD_CMP_FLAG
RX_MOP_STARVATI RX_SOP_STARVATI
ON
ON
R/W-0h
R/W-0h
R/W-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 16-34. IRQENABLER Register Field Descriptions
Bit
Field
Type
Reset
Description
11
RX_PKT_CMP_1
R/W
0h
Interrupt enable for USB1 Rx CPPI DMA packet completion status
10
TX_PKT_CMP_1
R/W
0h
Interrupt enable for USB1 Tx CPPI DMA packet completion status
9
RX_PKT_CMP_0
R/W
0h
Interrupt enable for USB0 Rx CPPI DMA packet completion status
8
TX_PKT_CMP_0
R/W
0h
Interrupt enable for USB0 Tx CPPI DMA packet completion status
2
PD_CMP_FLAG
R/W
0h
Interrupt enable when the packet is completed, the differ bits is set,
and the Packet Descriptor is pushed into the queue manager
1
RX_MOP_STARVATION
R/W
0h
Interrupt enable when queue manager cannot allocate an Rx buffer
in the middle of a packet.
0
RX_SOP_STARVATION
R/W
0h
Interrupt enable when queue manager cannot allocate an Rx buffer
at the start of a packet.
USBSS IRQ_ENABLE_SET Register
1766
Universal Serial Bus (USB)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated