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’.