CS8900A datasheet(41/128 Pages) CIRRUS

41 / 128 page

DS271PP3

CS8900A

Crystal LAN™ ISA Ethernet Controller

CIRRUS LOGIC PRODUCT DATA SHEET

0144h

Write-only TxCMD (transmit command)

Section 4.5 on page 71,

Section 5.7 on page 99

0146h

Write-only TxLength (transmit length)

Section 4.5 on page 71,

Section 5.7 on page 99

0148h

Reserved

Note 2

Address Filter Registers

0150h

Read/Write Logical Address Filter (hash table)

Section 4.6 on page 72,

Section 5.3 on page 87

0158h

Read/Write Individual Address

Section 4.6 on page 72,

Section 5.3 on page 87

015Eh

674

Reserved

Note 2

Frame Location

0400h

Read-only RXStatus (receive status)

Section 4.7 on page 73,

Section 5.2 on page 79

0402h

Read-only RxLength (receive length, in bytes)

Section 4.7 on page 73,

Section 5.2 on page 79

0404h

Read-only Receive Frame Location

Section 4.7 on page 73,

Section 5.2 on page 79

0A00

Write-only Transmit Frame Location

Section 4.7 on page 73,

Section 5.7 on page 99

PacketPage

Address

# of

Bytes

Type

Description

Cross Reference

Notes: 1. All registers are accessed as words only.

2. Read operation from the reserved location provides undefined data. Writing to a reserved location or

undefined bits may result in unpredictable operation of the CS8900A.

Table 12. PacketPage Memory Address Map (continued)

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