SMSC COM20020 用户手册

59

5

Pin No. 18/DESCRIPTION

See Italicized Text

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8

Network Protocol

See Italicized Text

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9

Network Reconfiguration

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9

Extended Timeout Function

See Italicized Text

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10

Line Protocol

See Italicized Text

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12

Microcontroller Interface

See Italicized Text

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15

Backplane Configuration

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17

Programmable TXEN Polarity

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22

Data Register

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23

Status Register

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23

Address Pointer Registers

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24

Configuration Register

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29

Table 9

Bits 4,3 - See Italicized Text

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30

Table 10

Bit 5 and Bits 3,2,1 - See Italicized

Text

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35

Transmit Sequence

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40

Bus Determination

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42

Abnormal Results

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