Fujitsu MB86617A 8.2. Physical register #00 (read)

LSI Specification
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 status 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.