ADM6926 查看數據表（PDF） - Unspecified

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ADM6926

26 port 10/100 Mbps Ethernet Switch Controller

Unspecified 

ADM6926

Interface Description

Name

M0RXDV

M0RXD

[0:3]

Type

I,

TTL

PD

I,

TTL

PD

M1CRS

M1COL

M1TXD

[0:3]

I,

TTL

PD

I,

TTL

PD

I/O,

TTL

8mA

M1TXEN O, TTL

8mA

PU

M1TXCLK I,

TTL

PD

M1RXCLK I,

TTL

PD

M1RXDV I,

TTL

PD

M1RXD I,

[0:3]

TTL

PD

Pin #

77

80,81,82,

83

84

85

89,88,87,

86

92

93

94

95

96,97,98,

99

Description

MII Port 0 Receive Data Valid.

RMII Port 0 Carrier Sense/Receive Data Valid.

This pin is internal pull_down.

MII Port 0 Receive Data Bit[0:3].

RMII Port 0 Receive Data Bit[0:1].

If in RMII mode, M0RXD[3] used for ext_dup_enable and

M0RXD[2] used for ext_dup_full. Internal pull_down. See

Sec3.1.27 for details.

MII Port 1 Carrier Sense

This pin is internal pull_down.

MII Port 1 Collision input

This pin is internal pull_down.

MII Port 1Transmit Data Bit[0:3].

Synchronous to the rising edge of M1TXCLK.

RMII Port 1Transmit Data Bit[0:1].

Synchronous to the rising edge of M1RXCLK.

BPEN. Value on M1TXD[3] will be latched at the rising

edge of RESETL to set Back_pressure enable. Internal

pull_up.

FCEN. Value on M1TXD[2] will be latched at the rising

edge of RESETL to set flow control enable. Internal pull_up.

TNKEN. Value on M1TXD[1] will be latched at the rising

edge of RESETL to set trunking enable. Internal pull_up.

IPGLVING. Value on M1TXD[0] will be latched at the

rising edge of RESETL to set shorter IPG. Internal

pull_down.

MII Port 1 Transmit Enable.

ANEN. Value on this pin will be latched at the rising edge of

RESETL to set auto_negotiation enable. Internal pull_up.

MII Port1 Transmit clock Input. This signal is 25MHz

input for MII interface.

MII1 Receive Clock Input. This signal is 25MHz input for

MII interface and 50MHz REFCLK input for RMII interface.

MII/RMII Port 1 Receive Data Valid.

This pin is internal pull_down.

MII Port 1 Receive Data Bit[0:3].

RMII Port 1 Receive Data Bit[0:1].

If in RMII mode, M1RXD[3] used for ext_dup_enable and

M1RXD[2] used for ext_dup_full. Internal pull_down. See

Sec3.1.27 for details.

ADMtek Inc.

2-4

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