CS8900 View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS8900

Highly-Integrated ISA Ethernet Controller

Cirrus Logic 

CS8900

Initiate Transmit Register:

Transmit Length (Write-only)

Address 0147h

Most-significant byte of Transmit Frame Length.

Address: PacketPage base + 0146h

Address 0146h

Least-significant byte of Transmit Frame Length.

This register is used in conjunction with register 9, TxCMD. When a transmission is initiated via a command in

TxCMD, the the length of the transmitted frame is written into this register. The length of the transmitted frame

may be modified by the configuration of the TxPadDis and InhibitCRC bits in the TxCMD register. See Table 5.17,

and Section 5.7. TxLength must be >3 and < 1519.

Since this register is write-only, it’s initial state after reset is undefined.

DS150PP2

69

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