AX88180 datasheet(30/47 Pages) ASIX

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AX88180

ASIX ELECTRONICS CORPORATION

4.44 DOGTHD0—Watch Dog Timer Threshold0 Register

Offset Address = 0xFCE0

Default = 0x0000_FFFF

Field

Name

Type

Default

Description

31:16

All 0’s

Reserved

15:0

DOGTH0 R/W

0xFFFF

Watch Dog Timer Low Word

This register and DOGTHD1[11:0] are defined to an expired threshold for

internal watchdog counter. The threshold {[DOGTHD1, DOGTHD0] is a 28-bit

value. To multiply 28-bit value with one-cycle period of a host clock is the

expired duration. If the DOGEN is set to ‘1’ and WDTEI of ISR is set, then

AX88180 will periodically generate interrupt whenever the counter reaches to the

threshold.

4.45 DOGTHD1—Watch Dog Timer Threshold1 Register

Address = 0xFCE4

Default = 0x0000_0000

Field

Name

Type

Default

Description

31:16

All 0’s

Reserved

DOGEN R/W

Dog Timer Enable

1 = Enable internal dog timer

0 = Disable

14:12

R/W

All 0’s

Reserved

11:0

DOGTH1 R/W

0x000

Dog Timer High Field.

This field and DOGTHD0[15:0] combine to a 28-bit register.

4.46 SOFTRST --- Software Reset Register

Address = 0xFCEC

Default = 0x0000_0003

Field

Name

Type

Default

Description

31:2

All 0’s

Reserved

R/W

Reserved

RST_MAC R/W

Software Reset enable

Driver set this bit to ‘0’ to reset MAC. The reset duration is depended on

whenever this bit is de-asserted by driver. Most registers will be cleared to default

value.

1 = in normal operation

0 = in reset status

AX88180 Datasheet(PDF) 30 Page - ASIX Electronics Corporation

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