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IVA2.2 Subsystem Register Manual
Table 5-244. TPCC_QSTATl
Address Offset
(0x4*l)
Physical address
0x01C0 0600 + (0x4*l)
Instance
IVA2.2 TPCC
Description
QSTATi Register Set
Type
R
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Reserved
Reserved
WM
Reserved
NUMVAL
Reserved
STRTPTR
THRXCD
Bits
Field Name
Description
Type
Reset
31:25
Reserved
Read returns 0.
R
0x00
24
THRXCD
Threshold Exceeded:
R
0
THRXCD = 0: Threshold specified by QWMTHR(A|B).Qn has not
been exceeded.
THRXCD = 1: Threshold specified by QWMTHR(A|B).Qn has been
exceeded.
QSTATn.THRXCD is cleared by CCERRCLR.QTHRXCDn
23:21
Reserved
Read returns 0.
R
0x0
20:16
WM
Watermark for Maximum Queue Usage:
R
0x00
Watermark tracks the most entries that have been in QueueN since
reset or since the last time that the watermark (WM) was cleared.
QSTATn.WM is cleared through CCERR.WMCLRn bit.
Legal values = 0x0 (empty) to 0x10 (full)
15:13
Reserved
Read returns 0.
R
0x0
12:8
NUMVAL
Number of Valid Entries in Queuei:
R
0x00
Represents the total number of entries residing in the Queue
Manager FIFO at a given instant. Always enabled.
Legal values = 0x0 (empty) to 0x10 (full)
7:4
Reserved
Read returns 0.
R
0x0
3:0
STRTPTR
Start Pointer:
R
0x0
Represents the offset to the head entry of Queuei, in units of
*entries*. Always enabled.
Legal values = 0x0 (0th entry) to 0xF (15th entry)
Table 5-245. Register Call Summary for Register TPCC_QSTATl
IVA2.2 Subsystem Basic Programming Model
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:
IVA2.2 Subsystem Register Manual
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885
SWPU177N – December 2009 – Revised November 2010
IVA2.2 Subsystem
Copyright © 2009–2010, Texas Instruments Incorporated