Texas Instruments OMAP36 Series, Техническое справочное руководство

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IVA2.2 Subsystem Register Manual
Table 5-390. TPCC_ABCNTm
Address Offset (0x20*m)
Physical address 0x01C0 4008 + (0x20*m) Instance IVA2.2 TPCC
Description A and B byte count
Type RW
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
BCNT ACNT
Bits Field Name Description Type Reset
31:16 BCNT BCNT : Count for 2nd Dimension: RW 0x----
BCNT is a 16-bit unsigned value that specifies the number of arrays
of length ACNT. For normal operation, valid values for BCNT can be
anywhere between 1 and 65535. Therefore, the maximum
Number of arrays in a frame is 65535 (64K-1 arrays). BCNT=1
means 1 array in the frame, and BCNT=0 means 0 arrays in the
frame.
In normal mode, a BCNT of 0 is considered as either a Null or
Dummy transfer. A Dummy or Null transfer will generate a
Completion code depending on the settings of the completion bit
fields of the OPT field.
15:0 ACNT ACNT : number of bytes in 1st dimension: RW 0x----
ACNT represents the number of bytes within the first dimension of a
transfer. ACNT is a 16-bit unsigned value with valid values between
0 and 65535. Therefore, the maximum number of bytes in an array is
65535 bytes (64K-1 bytes). ACNT must be greater than or equal to 1
for a TR to be submitted to TC. An ACNT of 0 is considered as
either a null or dummy transfer. A Dummy or Null transfer will
generate a Completion code depending on the settings of the
completion bit fields of the OPT field.
Table 5-391. Register Call Summary for Register TPCC_ABCNTm
IVA2.2 Subsystem Register Manual
• TPCC Register Mapping Summary : [0]
Table 5-392. TPCC_DSTm
Address Offset (0x20*m)
Physical address 0x01C0 400C + (0x20*m) Instance IVA2.2 TPCC
Description Destination Address
Type RW
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
DST
Bits Field Name Description Type Reset
31:0 DST Destination Address: RW 0x--------
The 32-bit destination address parameters specify the starting byte
address of the destination. If DAM is set to FIFO mode then the user
should program the Destination address to be aligned to the value
specified by the OPTi.FWID field. No errors are recognized here but
TC will assert error if this is not true.
Table 5-393. Register Call Summary for Register TPCC_DSTm
IVA2.2 Subsystem Register Manual
• TPCC Register Mapping Summary : [0]
951 SWPU177N – December 2009 – Revised November 2010 IVA2.2 Subsystem
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