AX88780_07 Datasheet, PDF(17/55 Page) ASIX Electronics Corporation – High-Performance Non-PCI Single-Chip 32-bit 10/100M Fast Ethernet Controller

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AX88780_07 Datasheet, PDF (17/55 Pages) ASIX Electronics Corporation – High-Performance Non-PCI Single-Chip 32-bit 10/100M Fast Ethernet Controller

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AX88780

4.0 Register Description

There are some registers located from offset 0xFC00 to 0xFCFF. All of the registers are 32-bit boundary alignment, but

only low 16-bit are available (exception 0xFC54). For reserved bits, donât set them in normal operation.

Table 8: MAC Register Mapping

Offset

Name

Description

0xFC00 CMD

Command Register

0xFC04 IMR

Interrupt Mask Register

0xFC08 ISR

Interrupt Status Register

0xFC10 TX_CFG

TX Configuration Register

0xFC14 TX_CMD

TX Command Register

0xFC18 TXBS

TX Buffer Status Register

0xFC1C PHY_CTRL

Internal PHY Control Register*

0xFC20 TXDES0

TX Descriptor0 Register

0xFC24 TXDES1

TX Descriptor1 Register

0xFC28 TXDES2

TX Descriptor2 Register

0xFC2C TXDES3

TX Descriptor3 Register

0xFC30 RX_CFG

RX Configuration Register

0xFC34 RXCURT

RX Current Pointer Register

0xFC38 RXBOUND

RX Boundary Pointer Register

0xFC40 MAC_CFG0

MAC Configuration0 Register

0xFC44 MAC_CFG1

MAC Configuration1 Register

0xFC48 MAC_CFG2

MAC Configuration2 Register

0xFC4C MAC_CFG3

MAC Configuration3 Register

0xFC54 TXPAUT

TX Pause Time Register

0xFC58 RXBTHD0

RX Buffer Threshold0 Register

0xFC5C RXBTHD1

RX Buffer Threshold1 Register

0xFC60 RXFULTHD

RX Buffer Full Threshold Register

0xFC68 MISC

Misc. Control Register

0xFC70 MACID0

MAC ID0 Register*

0xFC74 MACID1

MAC ID1 Register*

0xFC78 MACID2

MAC ID2 Register*

0xFC7C TXLEN

TX Length Register

0xFC80 RXFILTER

RX Packet Filter Register

0xFC84 MDIOCTRL

MDIO Control Register

0xFC88 MDIODP

MDIO Data Port Register

0xFC8C GPIO_CTRL

GPIO Control Register*

0xFC90 RXINDICATOR

Receive Indicator Register

0xFC94 TXST

TX Status Register

0xFCA0 MDCLKPAT

MDC Clock Pattern Register

0xFCA4 RXCHKSUMCNT RX IP/UDP/TCP Checksum Error Counter

0xFCA8 RXCRCNT

RX CRC Error Counter

0xFCAC TXFAILCNT

TX Fail Counter

0xFCB0 PROMDPR

EEPROM Data Port Register

0xFCB4 PROMCTRL

EEPROM Control Register

0xFCB8 MAXRXLEN

MAX. RX packet Length Register

0xFCC0 HASHTAB0

Hash Table0 Register*

0xFCC4 HASHTAB1

Hash Table1 Register*

0xFCC8 HASHTAB2

Hash Table2 Register*

0xFCCC HASHTAB3

Hash Table3 Register*

0xFCE0 DOGTHD0

Watch Dog Timer Threshold0 Register

0xFCE4 DOGTHD1

Watch Dog Timer Threshold1 Register

0xFCEC SOFTRST

Software Reset Register

*Note: It is not affected by software reset

Default value

0x0000_0201

0x0000_0000

0x0000_0040

0x0000_0000

0x0000_0101

0x0000_0000

0x0000_07FF

0x0000_8157

0x0000_6000

0x0000_0100

0x0000_060E

0x001F_E000

0x0000_0300

0x0000_0600

0x0000_0100

0x0000_0013

0x0000_0000

0x0000_05FC

0x0000_0004

0x0000_0000

0x0000_0003

0x0000_0000

0x0000_8040

0x0000_0000

0x0000_0600

0x0000_0000

0x0000_FFFF

0x0000_0000

0x0000_0003

ASIX ELECTRONICS CORPORATION

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