MSC8144E Reference Manual, Rev. 3
19-56
Freescale
Semiconductor
TDM Interface
TDMxTFR
sets the priority upgrade value for the transmit channels.
19.7.1.11 TDMx Receive Force Register (TDMxRFR)
TDMxRFR
sets the priority upgrade value for the transmit channels.
Table 19-21. TDMxTFR Bit Descriptions
Name
Reset
Description
—
31–16
0
Reserved. Write to zero for future compatibility.
PUV
15–0
0
Priority Upgrade Value
Determines the threshold value for which the TDM transmitter upgrades its system priority. The value is
used to avoid an underrun condition. If the value is 0x0000 (reset value), the priority is not upgraded and
remains low. The maximum value, which causes the priority always to be high, depends on the value
stored in TDMxTFP[TCDBL]. If TDMxTFP[TCDBL] = 0x000, achieve the maximum value is achieved by
setting PUV = TDMxTFP[TNCF]. If TDMxTFP[TCDBL] is not 0x000, set the PUV using: PUV =
64/TDMxTFP[TCS]
×
TDMxTNB[TNB]. See page 19-51 for TDMxTFP details and page 19-69 for
TDMxTNB details.
TDMxRFR
TDMx Receive Force Register0x3F18
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
—
Type
R/W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
PUV
Type
R/W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Table 19-22. TDMxRFR Bit Descriptions
Name
Reset
Description
—
31–16
0
Reserved. Write to zero for future compatibility.
PUV
15–0
0
Priority Upgrade Value
Determines the threshold value for which the TDM receiver upgrades its system priority. The value is used
to avoid an overrun condition. If the value is 0x0000 (reset value), the priority is not upgraded and remains
low. The maximum value, which causes the priority always to be high, depends on the value stored in
TDMxRFPx[RCDBL]. If TDMxRFP[RCDBL] = 0x000, achieve the maximum value by setting PUV =
TDMxRFP[RNCF]. If TDMxRFP[RCDBL] is not 0x000, set the PUV using PUV = 64/TDMxRFP[RCS]
×
RNBx[RNB]. See page 19-48 for TDMxRFP details and page 19-68 for TDMxRNB details.
Summary of Contents for MSC8144E
Page 1: ...MSC8144E Reference Manual Quad Core Media Signal Processor MSC8144ERM Rev 3 July 2009 ...
Page 48: ...MSC8144E Reference Manual Rev 3 xlviii Freescale Semiconductor ...
Page 86: ...MSC8144E Reference Manual Rev 3 1 38 Freescale Semiconductor Overview ...
Page 168: ...MSC8144E Reference Manual Rev 3 3 60 Freescale Semiconductor External Signals ...
Page 242: ...MSC8144E Reference Manual Rev 3 5 26 Freescale Semiconductor Reset ...
Page 314: ...MSC8144E Reference Manual Rev 3 8 24 Freescale Semiconductor General Configuration Registers ...
Page 414: ...MSC8144E Reference Manual Rev 3 10 14 Freescale Semiconductor MSC8144E SC3400 DSP Subsystem ...
Page 452: ...MSC8144E Reference Manual Rev 3 11 38 Freescale Semiconductor Internal Memory Subsystem ...
Page 520: ...MSC8144E Reference Manual Rev 3 12 68 Freescale Semiconductor DDR SDRAM Memory Controller ...
Page 1070: ...MSC8144E Reference Manual Rev 3 21 28 Freescale Semiconductor Timers ...