Preliminary
www.ti.com
Registers
3.3.2.46 Transmit Channel 0-7 DMA Head Descriptor Pointer Register (TXnHDP)
The transmit channel 0-7 DMA head descriptor pointer register (TXnHDP) is shown in
and
described in
Figure 3-71. Transmit Channel n DMA Head Descriptor Pointer Register (TXnHDP)
31
16
TXnHDP
R/W-x
15
0
TXnHDP
R/W-x
LEGEND: R/W = Read/Write; -n = value after reset; -x = value is indeterminate after reset
Table 3-71. Transmit Channel n DMA Head Descriptor Pointer Register (TXnHDP)
Field Descriptions
Bit
Field
Value
Description
31-0
TXnHDP
0-FFFF FFFFh
Transmit channel n DMA Head Descriptor pointer. Writing a transmit DMA buffer descriptor
address to a head pointer location initiates transmit DMA operations in the queue for the
selected channel. Writing to these locations when they are nonzero is an error (except at reset).
Host software must initialize these locations to 0 on reset.
3.3.2.47 Receive Channel 0-7 DMA Head Descriptor Pointer Register (RXnHDP)
The receive channel 0-7 DMA head descriptor pointer register (RXnHDP) is shown in
and
described in
Figure 3-72. Receive Channel n DMA Head Descriptor Pointer Register (RXnHDP)
31
16
RXnHDP
R/W-x
15
0
RXnHDP
R/W-x
LEGEND: R/W = Read/Write; -n = value after reset; -x = value is indeterminate after reset
Table 3-72. Receive Channel n DMA Head Descriptor Pointer Register (RXnHDP)
Field Descriptions
Bit
Field
Value
Description
31-0
RXnHDP
0-FFFF FFFFh
Receive channel n DMA Head Descriptor pointer. Writing a receive DMA buffer descriptor
address to this location allows receive DMA operations in the selected channel when a channel
frame is received. Writing to these locations when they are nonzero is an error (except at reset).
Host software must initialize these locations to 0 on reset.
503
SPRUGX9 – 15 April 2011
EMAC/MDIO Module
© 2011, Texas Instruments Incorporated
Содержание TMS320C6A816 Series
Страница 2: ...Preliminary 2 SPRUGX9 15 April 2011 Submit Documentation Feedback 2011 Texas Instruments Incorporated...
Страница 92: ...92 Read This First SPRUGX9 15 April 2011 Submit Documentation Feedback 2011 Texas Instruments Incorporated...
Страница 1122: ...1122 Multichannel Audio Serial Port McASP SPRUGX9 15 April 2011 Submit Documentation Feedback 2011 Texas Instruments Incorporated...
Страница 1562: ...1562 Real Time Clock RTC SPRUGX9 15 April 2011 Submit Documentation Feedback 2011 Texas Instruments Incorporated...
Страница 1658: ...1658 Timers SPRUGX9 15 April 2011 Submit Documentation Feedback 2011 Texas Instruments Incorporated...
Страница 1750: ...1750 UART IrDA CIR Module SPRUGX9 15 April 2011 Submit Documentation Feedback 2011 Texas Instruments Incorporated...
Страница 1984: ...1984 Universal Serial Bus USB SPRUGX9 15 April 2011 Submit Documentation Feedback 2011 Texas Instruments Incorporated...