LSI Specification
MB86617A
Rev.1.0 Fujitsu VLSI
92
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’.