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Physical register #0d, 0e, 0f (read/write) – FUJITSU MB86617A User Manual

Page 97

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LSI S pecification

MB86617A

Rev.1.0

Fujitsu VLSI

92

8.10. Physical register #0D, 0E, 0F (read/write)

Physical Register#0D, 0E, 0F are the registers that indicate maximum transfer speed of the node connected to IEEE1394 port installed in

this node.

phy/
link-

addr

R/W

Bit

15

Bit

14

Bit

13

Bit

12

Bit

11

Bit

10

Bit

9

Bit

8

Bit

7

Bit

6

Bit

5

Bit

4

Bit

3

Bit

2

Bit

1

Bit

0

R

Negotiated_speed-0

18 h

W

-

-

-

-

-

-

-

-

-

-

-

Int_en

able-0

Fault-0

-

-

-

R

Negotiated_speed-1

1A h

W

-

-

-

-

-

-

-

-

-

-

-

Int_en

able-1

Fault-1

-

-

-

R

Negotiated_speed-2

1C h

W

-

-

-

-

-

-

-

-

-

-

-

Int_en

able-2

Fault-2

-

-

-

Initial value

‘0’

‘0’

‘0’

‘0’

‘0’

‘0’

‘0’

‘0’

‘0’’

‘0’’

‘0’

‘0’

‘0’

‘0’

‘0’

‘0’

<

< Description of Each Bit

BIT

Bit Name

Action

Value

Function

Read

-

Always indicates’0’.

15 - 8

reserved

Write

-

Always write in ‘0’.

Read

-

Indicate max. transfer speed between nodes connected to 1394 port n.
(MSB: 7, LSB: 5)

000 = S100
001 = S200
010 = S400
011 - 111 = invalid

7 - 5

Negotiated_

speed-n

Write

-

Always write in ‘0’.

0

Does not indicate ‘1’ at Port_event bit when Connected, Bias, Disabled, Fault bit
changed.

4

Int_enable-n

Read/

Write

1

Indicates ‘1’ at Port_event bit when Connected, Bias, Disabled, Fault bit changed.

0

Indicates that suspend or resume processing is normal.

Read

1

Indicates that suspend or resume processing occurred error.

3

Fault

Write

-

Clears the bit value to ‘0’ by writing in ‘1’.

-

Always indicates’0’.

2 - 0

reserved

Read/

Write

-

Always write in ‘0’.