CP2201 datasheet(51/108 Pages) SILABS

51 / 108 page

CP2200/1

Rev. 1.0

Bit 7:

OVRRIDE: Default Override

0: Settings for bits 5, 4, 3, 2, and 1 in TXCN will be ignored. MAC settings will take effect.

1: Settings for bits 5, 4, 3, 2, and 1 in TXCN will be applied. MAC settings will be overridden.

Bit 6:

UNUSED. Read = 0b, Write = don’t care.

Bit 5:

CRCENOV: CRC Enable

0: Disable CRC append on transmission.

1: Enable CRC append on transmission.

Bit 4:

PADENOV: Pad Enable

0: Disable padding of short frames.

1: Enable padding of short frames.

Bit 3:

TXPPKT: Transmit a PAUSE control packet

0: Normal packet transmission. Packet data will be obtained from the transmit buffer.

1: A PAUSE control packet with the value of TXPAUSEH:TXPAUSEL will be transmitted. Data in the

transmit buffer will not be accessed. PAUSE control packets are only valid in full-duplex mode.

Bit 2:

BCKPRES: Apply Back Pressure

0: Normal packet transmission. Back pressure will not be applied.

1: Back pressure will be applied on transmission (only valid in half duplex mode).

Bit 1:

FDPLXOV: Full Duplex Operation

Note: The transmit interface, MAC, and physical layer must be configured to the same duplex mode.

0: Transmit interface operates in half duplex mode.

1: Transmit interface operates in full duplex mode.

Bit 0:

TXGO: Transmit Packet

Set this bit to ‘1’ to begin transmission of a packet.

Note: TXGO should not be set to one if both TXSTART and TXEND are zero (i.e., no data has been

added to the buffer).

R/W

Reset Value

OVRRIDE

—

CRCENOV PADENOV TXPPKT BCKPRES FDPLXOV

TXGO

00000000

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

Address:

0x53

Bits 7–1: UNUSED. Read = 0000000b, Write = don’t care.

Bit 0:

TXBUSY: Packet Transmit Status

0: Packet Transmit is not in progress.

1: Packet Transmit is in progress.

RRR

Reset Value

—

TXBUSY 00000000

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

Address:

0x54

CP2201 Datasheet(PDF) 51 Page - Silicon Laboratories

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