Internal Registers

2.4 Internal Registers

Figure 2±5. Internal Registers

Byte 3

Byte 2

Byte 1

Byte 0

DIO address

NetMask

NetSts

 

NetSio

 

NetCmd

Man Test

 

NetConfig

Default

Default

 

Default

 

Default

device ID

device ID

 

vendor ID

 

vendor ID

MSbyte

LSbyte

 

MSbyte

 

LSbyte

Default

Default

 

Default

 

Default

Max_Lat

Min_Lat

 

Subclass

 

revision

 

 

 

 

 

 

Areg_0

Areg_0

 

Areg_0

 

Areg_0

(23 to 16)

(31 to 24)

 

(39 to 32)

 

(47 to 40)

 

 

 

 

 

 

Areg_1

Areg_1

 

Areg_0

 

Areg_0

(39 to 32)

(47 to 40)

 

(7 to 0)

 

(15 to 8)

 

 

 

 

 

 

Areg_1

Areg_1

 

Areg_1

 

Areg_1

(7 to 0)

(15 to 8)

 

(23 to 16)

 

(31 to 24)

 

 

 

 

 

 

Areg_2

Areg_2

 

Areg_2

 

Areg_2

(23 to 16)

(31 to 24)

 

(39 to 32)

 

(47 to 40)

 

 

 

 

 

 

Areg_3

Areg_3

 

Areg_2

 

Areg_2

(39 to 32)

(47 to 40)

 

(7 to 0)

 

(15 to 8)

 

 

 

 

 

 

Areg_3

Areg_3

 

Areg_3

 

Areg_3

(7 to 0)

(15 to 8)

 

(23 to 16)

 

(31 to 24)

 

 

 

 

 

 

 

 

HASH1

 

 

 

 

 

 

 

HASH2

 

 

 

 

 

 

Tx underrun

 

 

Good Tx frames

 

Rx overrun

 

Good Rx frames

 

Code error

CRC error

 

Deferred Tx

frames

frames

 

frames

 

 

 

 

 

Single collision Tx frames

 

Multicollision Tx frames

 

 

 

 

 

Acommit

Carrier loss

 

Late

 

Excessive

errors

 

collisions

 

collisions

 

 

 

 

 

 

 

 

 

MaxRx

 

BSIZEreg

 

LEDreg

 

 

 

 

 

 

0x00

0x04

0x08

0x0C

0x10

0x14

0x18

0x1C

0x20

0x24

0x28

0x2C

0x30

0x34

0x38

0x3C

0x40

0x44

The internal registers are used less often than the host registers. They are used for:

-Setting diagnostic options, such as loopback (wrap) and copy all frames

-Setting network options. This is usually a one-time operation at initialization.

ThunderLAN Registers

2-11

Page 34
Image 34
Texas Instruments TNETE110A, TNETE211, TNETE100A manual Internal Registers, HASH1 HASH2

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