Texas-instruments TMS320C645x DSP Uživatelský manuál stáhnout pdf (Strana 87)

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5.4 Transmit Teardown Register (TXTEARDOWN)

EMAC Port Registers

The transmit teardown register (TXTEARDOWN) is shown in Figure 32 and described in Table 32 .

Figure 32. Transmit Teardown Register (TXTEARDOWN)

31 16

Reserved

R-0

15 3 2 0

Reserved TXTDNCH

R-0 R/W-0

LEGEND: R/W = Read/Write; R = Read only; - n = value after reset

Table 32. Transmit Teardown Register (TXTEARDOWN) Field Descriptions

Bit Field Value Description

31-3 Reserved 0 Reserved

2-0 TXTDNCH 0-3h Transmit teardown channel. Transmit channel teardown is commanded by writing the encoded

value of the transmit channel to be torn down. The teardown register is read as zero.

0 Teardown transmit channel 0

1h Teardown transmit channel 1

2h Teardown transmit channel 2

3h Teardown transmit channel 3

4h Teardown transmit channel 4

5h Teardown transmit channel 5

6h Teardown transmit channel 6

7h Teardown transmit channel 7

SPRU975B – August 2006 Ethernet Media Access Controller (EMAC)/Management Data Input/Output (MDIO) 87

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Texas-instruments TMS320C645x DSP Uživatelský manuál Strana 87