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Texas Instruments TMS570LC4357

Texas Instruments TMS570LC4357
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EMAC Module Registers
1913
SPNU563AMarch 2018
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Copyright © 2018, Texas Instruments Incorporated
EMAC/MDIO Module
32.5.41 Receive Pause Timer Register (RXPAUSE)
The receive pause timer register (RXPAUSE) is shown in Figure 32-82 and described in Table 32-80.
Figure 32-82. Receive Pause Timer Register (RXPAUSE) (offset = 1E8h)
31 16
Reserved
R-0
15 0
PAUSETIMER
R-0
LEGEND: R = Read only; -n = value after reset
Table 32-80. Receive Pause Timer Register (RXPAUSE) Field Descriptions
Bit Field Value Description
31-16 Reserved 0 Reserved
15-0 PAUSETIMER 0-FFh Receive pause timer value. These bits allow the contents of the receive pause timer to be
observed. The receive pause timer is loaded with FF00h when the EMAC sends an outgoing pause
frame (with pause time of FFFFh). The receive pause timer is decremented at slot time intervals. If
the receive pause timer decrements to 0, then another outgoing pause frame is sent and the
load/decrement process is repeated.
32.5.42 Transmit Pause Timer Register (TXPAUSE)
The transmit pause timer register (TXPAUSE) is shown in Figure 32-83 and described in Table 32-81.
Figure 32-83. Transmit Pause Timer Register (TXPAUSE) (offset = 1ECh)
31 16
Reserved
R-0
15 0
PAUSETIMER
R-0
LEGEND: R = Read only; -n = value after reset
Table 32-81. Transmit Pause Timer Register (TXPAUSE) Field Descriptions
Bit Field Value Description
31-16 Reserved 0 Reserved
15-0 PAUSETIMER 0-FFh Transmit pause timer value. These bits allow the contents of the transmit pause timer to be
observed. The transmit pause timer is loaded by a received (incoming) pause frame, and then
decremented at slot time intervals down to 0, at which time EMAC transmit frames are again
enabled.

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