USB Registers
16.5.7.4 FDBSC1 Register (offset = 24h) [reset = 0h]
FDBSC1 is shown in
and described in
.
Figure 16-280. FDBSC1 Register
31
30
29
28
27
26
25
24
FDBQ7_STARVE_CNT
R-0
23
22
21
20
19
18
17
16
FDBQ6_STARVE_CNT
R-0
15
14
13
12
11
10
9
8
FDBQ5_STARVE_CNT
R-0
7
6
5
4
3
2
1
0
FDBQ4_STARVE_CNT
R-0
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 16-294. FDBSC1 Register Field Descriptions
Bit
Field
Type
Reset
Description
31-24
FDBQ7_STARVE_CNT
R-0
0
This field increments each time the Free Descriptor/Buffer Queue 7
is read while it is empty via the CPPI DMA.
This field is cleared when read via the cpu.
23-16
FDBQ6_STARVE_CNT
R-0
0
This field increments each time the Free Descriptor/Buffer Queue 6
is read while it is empty via the CPPI DMA.
This field is cleared when read via the cpu.
15-8
FDBQ5_STARVE_CNT
R-0
0
This field increments each time the Free Descriptor/Buffer Queue 5
is read while it is empty via the CPPI DMA.
This field is cleared when read via the cpu.
7-0
FDBQ4_STARVE_CNT
R-0
0
This field increments each time the Free Descriptor/Buffer Queue 4
is read while it is empty via the CPPI DMA.
This field is cleared when read via the cpu.
Queue_Manager_Free_Descriptor_Buffer_Starvation_Count
Register 1
2112
Universal Serial Bus (USB)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated