Product specifications

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VT8235 V-Link South Bridge

Revision 1.22 October 24, 2002 -35- Register Overview

I/O Space LAN Registers

Offset

Power Management Default Acc

5-0 Ethernet Address RW

6 Receive Control 00 RW

7 Transmit Control

08

RW

8 Command 0 00 RW

9 Command 1 00 RW

A-B -reserved- 00

—

C Interrupt Status 0 00 RW

D Interrupt Status 1 00 RW

E Interrupt Mask 0 00 RW

F Interrupt Mask 1 00 RW

17-10 Multicast Address RW

1B-18 Receive Address RW

1F-1C Transmit Address RW

23-20 Receive Status 0000 0000 RW

27-24 Receive Data Buffer Control 0000 0000

RO

2B-28 Receive Data Buffer Start Address

RO

2F-2C Receive Data Buffer Branch Address

RO

30-3F -reserved- 00

—

43-40 Transmit Status 0000 0000 RW

47-44 Transmit Data Buffer Control 0000 0000

RO

4B-48 Transmit Data Buffer Start Address

RO

4F-4C Transmit Data Buffer Branch Addr

RO

50-6B -reserved- 00

—

6C PHY Address

01

RW

6D MII Status

13

RW

6E Buffer Control 0 00 RW

6F Buffer Control 1 00 RW

70 MII Management Port Command 00 RW

71 MII Management Port Address

81

RW

73-72 PHY Data 0000

RW

74 EEPROM Command / Status 00 RW

75-77 -reserved- 00

—

78 EEPROM Control 00 RW

I/O Space LAN Registers (continued)

Offset

Power Management Default Acc

79 Configuration 1 00 RW

7A Configuration 2 00 RW

7B Configuration 3 00 RW

7C-7F -reserved- 00

—

80 Miscellaneous 1 00 RW

81 Miscellaneous 2 00 RW

82 -reserved- 00

—

83 Sticky Hardware Control 00 RW

84 MII Interrupt Status 00

WC

85 -reserved- 00

—

86 MII Interrupt Mask 00 RW

87-8B -reserved- 00

—

8D-8C Flash Address 0000 RW

8E -reserved- 00

—

8F Flash Write Data Output 00 RW

90 Flash Read / Write Command 00 RW

91 Flash Write Data Input 00

RO

92 -reserved- 00

—

93 Flash Checksum 00 RW

95-94 Suspend Mode MII Address 0000 RW

96 Suspend Mode PHY Address 00 RW

97 -reserved- 00

—

99-98 Pause Timer 0000 RW

9A Pause Status 00 RW

9B -reserved- 00

—

9D-9C Soft Timer 0 0000 RW

9F-9E Soft Timer 1 0000 RW

A0/A4 Wake On LAN Control Set / Clear 00 / 00 RW

A1/A5 Power Configuration Set / Clear 00 / 00 RW

A2/A6 -reserved- (do not program) 00 / 00

—

A3/A7 Wake On LAN Config Set / Clear 00 / 00 RW

A8-AF -reserved- 00

—

B3-B0 Pattern CRC 0 0000 0000 RW

B7-B4 Pattern CRC 1 0000 0000 RW

BB-B8 Pattern CRC 2 0000 0000 RW

BF-BC Pattern CRC 3 0000 0000 RW

CF-C0 Byte Mask 0 0000 0000 RW

DF-D0 Byte Mask 1 0000 0000 RW

EF-E0 Byte Mask 2 0000 0000 RW

FF-F0 Byte Mask 3 0000 0000 RW