Queue Manager Queue N Status Register B (Qstatbn); Queue Manager Queue N Status Register C (Qstatcn); Queue Manager Queue N Status Register B (Qstatbn) Field Descriptions; Queue Manager Queue N Status Register C (Qstatcn) Field Descriptions - Texas Instruments TMS320C6A816 Series Technical Reference Manual

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20.9.5.26 Queue Manager Queue N Status Register B (QSTATBn)

The queue manager queue N status register B (QSTATBn) is an optional register that is only
implemented for a queue if the queue supports a total byte count feature. The total byte count feature
provides a count of the total number of bytes in all of the packets that are currently valid in the queue. It
does not support byte accesses. N ranges from 0 to 155.
The queue manager queue N status register B is shown in
Table 20-158.
Figure 20-143. Queue Manager Queue N Status Register B (QSTATBn)
31 28 27
Reserved
R-0h
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 20-158. Queue Manager Queue N Status Register B (QSTATBn) Field Descriptions
Bits Field Name
31-28 Reserved
27-0 queue_byte_count

20.9.5.27 Queue Manager Queue N Status Register C (QSTATCn)

The queue manager queue N status register C (QSTATCn) specifies the packet size for the head
element of a queue. It does not support byte accesses. N ranges from 0 to 155. This register is shown
in Figure 20-144 and described in
Figure 20-144. Queue Manager Queue N Status Register C (QSTATCn)
31
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 20-159. Queue Manager Queue N Status Register C (QSTATCn) Field Descriptions
Bits Field Name
31-14 Reserved
13-0 packet_size
SPRUGX9 – 15 April 2011
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Preliminary
Description
Reserved
This field indicates how many bytes total are contained in all of the packets that are
currently queued on this queue.
Table 20-159.
Reserved
R-0h
Description
Reserved
This field indicates packet size of the head element of a queue.
© 2011, Texas Instruments Incorporated
Figure 20-143
queue_byte_count
R-0h
14 13
Registers
and described in
packet_size
R-0h
Universal Serial Bus (USB)
0
0
1941