AX88180 datasheet(28/47 Pages) ASIX

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AX88180

ASIX ELECTRONICS CORPORATION

4.35 RXCRCNT--RX CRC Error Counter

Offset Address = 0xFCA8

Default = 0x0000_0000

Field

Name

Type

Default

Description

31:16

All 0’s

Reserved

15:0

RXCRCCNT R/W

All 0’s

RX CRC32 Error Counter

MAC checks the received packet. If there is a CRC error detect, this field will

be added one. The value will be rounded back to 0x0000 if it exceeds 0xFFFF.

4.36 TXFAILCNT--TX Fail Counter

Offset Address = 0xFCAC

Default = 0x0000_0000

Field

Name

Type

Default

Description

31:16

All 0’s

Reserved

15:0

TXFILCNT R/W

All 0’s

TX Fail Counter

This field records the number of transmitted error for TX packet. The value will

be rounded back to 0x0000 if it exceeds 0xFFFF.

4.37 PROMDPR--EEPROM Data Port Register

Offset Address = 0xFCB0

Default = 0x0000_0000

Field

Name

Type

Default

Description

31:16

All 0’s

Reserved

15:0

PROMDP R/W

All 0’s

EEPROM Data Port

The data to or from EEPROM is set in this field.

4.38 PROMCTRL--EEPROM Control Register

Offset Address= 0xFCB4

Default = 0x0000_0000

Field

Name

Type

Default

Description

31:15

All 0’s

Reserved

14:12

ROM_CMD R/W

000

EEPROM Command Code.

Driver set this field to represent what type command will be send to EEPROM

device.

110

= read command

111

= erase command

101

= write command

ROM_WT

R/W

Write EEPROM

Set to ‘1’ to write EEPROM, it will be auto-cleared when AX88180 finishes the

write operation.

ROM_RD

R/W

Read EEPROM

Set to ‘1’ to read EEPROM, it will be cleared when MAC finished the read

operation. Driver can read PROMDPR register to get the returned data.

ROM_RLD

R/W

Reload EEPROM

Set to ‘1’ to re-load EEPROM, this bit will be auto-cleared when AX88180

finishes loading operation.

Reserved

7:0

ROM_ADDR R/W

0x00

EEPROM Address

Set this field to define the address for serial EEPROM access. (only support

16-bit data access, e.g. 93C56 type)

AX88180 Datasheet(PDF) 28 Page - ASIX Electronics Corporation

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