Section 5.48, Section 5.49 – Texas Instruments TMS320C674X User Manual

Page 123

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EMAC Module Registers

5.48 Transmit Channel Completion Pointer Registers (TX0CP-TX7CP)

The transmit channel 0-7 completion pointer register (TXnCP) is shown in

Figure 86

and described in

Table 85

.

Figure 86. Transmit Channel n Completion Pointer Register (TXnCP)

31

0

TXnCP

R/W-x

LEGEND: R/W = Read/Write; -n = value after reset; -x = value is indeterminate after reset

Table 85. Transmit Channel n Completion Pointer Register (TXnCP) Field Descriptions

Bit

Field

Value

Description

31-0

TXnCP

0-FFFF FFFFh

Transmit channel n completion pointer register is written by the host with the buffer descriptor
address for the last buffer processed by the host during interrupt processing. The EMAC uses the
value written to determine if the interrupt should be deasserted.

5.49 Receive Channel Completion Pointer Registers (RX0CP-RX7CP)

The receive channel 0-7 completion pointer register (RXnCP) is shown in

Figure 87

and described in

Table 86

.

Figure 87. Receive Channel n Completion Pointer Register (RXnCP)

31

0

RXnCP

R/W-x

LEGEND: R/W = Read/Write; -n = value after reset; -x = value is indeterminate after reset

Table 86. Receive Channel n Completion Pointer Register (RXnCP) Field Descriptions

Bit

Field

Value

Description

31-0

RXnCP

0-FFFF FFFFh

Receive channel n completion pointer register is written by the host with the buffer descriptor
address for the last buffer processed by the host during interrupt processing. The EMAC uses the
value written to determine if the interrupt should be deasserted.

123

SPRUFL5B – April 2011

EMAC/MDIO Module

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