FUJITSU MB86617A - Manual (Page 88)

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.