ST802RT1B Просмотр технического описания (PDF) - STMicroelectronics

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ST802RT1B

10/100 real-time Ethernet 3.3 V transceiver

STMicroelectronics 

Registers and descriptors description

ST802RT1A, ST802RT1B

Table 20. RN11 [0d17, 0x11]: Receiver configuration information and interrupt status register

Bit

Bit name

Description

Default

RW

type

Type

15:11 RESERVED ---

00000b RO P

1 -> FX mode set

0 -> FX mode not set

10

FX_MODE If set to '1', auto-negotiation and scrambling is disabled. This 0

RO

-

bit can be set through an opportune hardware topology in

ST802RT1B

1 -> 100 Mb/s mode

9

Speed

0 -> 10 Mb/s mode

0

RO

-

This bit holds a valid value only if a link is already established

1 -> Full-duplex mode enabled

8

Duplex

0 -> Half-duplex mode enabled

0

RO

-

This bit holds a valid value only if a link is already established

1 -> Pause is enabled

7

Pause

0 -> Pause is disabled

Pause is active only after auto-negotiation completion, if both

0

RO

-

devices; support symmetric pause (RN04[10], RN05[10])

1 -> “Auto-negotiation completed” interrupt is pending

6 Auto neg interrupt 0 -> Auto-negotiation not yet completed

Interrupt enabled by RN12[6]

0

RO LH

5

Remote fault

interrupt

1 -> “Remote fault condition” interrupt is pending

0 -> No remote fault condition detected

Interrupt enabled by RN12[5]

4

Link down

interrupt

1 -> “link status changed to fail” interrupt is pending

0 -> no link status changes

Interrupt enabled by RN12[4]

0

RO LH

0

RO LH

Auto-Negotiation 1 -> “acknowledge match” interrupt is pending

3 Link Code Word 0 -> no link code word received

Received

Interrupt enabled by RN12[3]

0

RO LH

2

Link down

interrupt

1 -> “Parallel Detection fault” interrupt is pending

0 -> No Parallel Detection faults

Interrupt enabled by RN12[2]

1

Auto neg page

received

1 -> “Auto-negotiation page received” interrupt is pending

0 -> no auto-negotiation page received

Interrupt enabled by RN12[1]

0

RO LH

0

RO LH

1 -> “receive error buffer full” interrupt is pending (64k packet

errors)

0

RX_FULL 0 -> less than 64k error packets received

0

RO LH

Interrupt enabled by RN12[0]. Related counter is cleared

after read

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Doc ID 17049 Rev 1

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