LSI S pecification
MB86617A
Rev.1.0
Fujitsu VLSI
83
8.2. Physical register #00 (read)
Physical Register#00 is the register that indicates Physical ID, root status, and cable power st atus of 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
00 h
R
-
-
-
-
-
-
-
-
Physical_ID
R
PS
Initial value
‘0’
‘0’
‘0’
‘0’
‘0’
‘0’
‘0’
‘0’
“00 h”
‘0’
‘0’
Description of Each Bit
BIT
Bit name
Action
Value
Function
15 – 8
Reserved
Read
0
Always indicate ‘0’.
7 – 2
Physical_ID
Read
-
Indicate node No. of this node determined by Self- identify during processing bus
reset. (MSB : 7 , LSB : 2)
Effective after completion of bus reset.
0
Indicates that this node is not root.
1
R
Read
1
Indicates that this node is root.
0
Indicates that the supplied cable power is below specification.
0
PS
Read
1
Indicates that the supplied cable power is over specification.