Fujitsu MB86617A manual Physical register #02 read

LSI Specification MB86617A

8.4. Physical register #02 (read)

Physical Register#02 is the register that indicates if the extended PHY register map is in existence or not, and the number of ports (3 port).

phy/		Bit	Bit	Bit	Bit	Bit	Bit	Bit	Bit	Bit		Bit	Bit	Bit	Bit	Bit		Bit	Bit
link-	R/W
		15	14	13	12	11	10	9	8	7		6	5	4	3	2		1	0
addr
04 h	R	-	-	-	-	-	-	-	-		Extended			-		Total_ports
Fixed value		‘0’	‘0’	‘0’	‘0’	‘0’	‘0’	‘0’	‘0’			“7 h”		‘0’			“3h”

<Description of each Bit

BIT	Bit Name	Action	Value	Function
15 - 8	reserved	Read	-	Always indicate ‘0’.
7 - 5	Extended	Read	-	Indicate that this node has the extended PHY register map. (MSB: 7 , LSB: 5)
				Always indicate fixed value “7 h”.
4	reserved	Read	-	Always indicates ‘0’.
3 - 0	Total_ports	Read	-	Indicate the number of ports held by this node (MSB: 4 , LSB: 0).
				Always indicate fixed value “3 h”.

Rev.1.0 85 Fujitsu VLSI