Fujitsu MB86617A manual Physical register #0D, 0E, 0F read/write

LSI Specification MB86617A

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/		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
	R									Negotiated_speed-0			Int_en
18 h		-	-	-	-	-	-	-	-					Fault-0	-	-	-
	W									-	-	-	able-0
	R									Negotiated_speed-1			Int_en
1A h		-	-	-	-	-	-	-	-					Fault-1	-	-	-
													able-1
	W									-	-	-
	R									Negotiated_speed-2			Int_en
1C h		-	-	-	-	-	-	-	-					Fault-2	-	-	-
	W									-	-	-	able-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’.
				Indicate max. transfer speed between nodes connected to 1394 port n.
				(MSB: 7, LSB: 5)
		Read	-	000	=	S100
	Negotiated_			001	=	S200
7 - 5
	speed-n			010	=	S400
				011 - 111 = invalid
		Write	-	Always write in ‘0’.
			0	Does not indicate ‘1’ at Port_event bit when Connected, Bias, Disabled, Fault bit
				changed.
		Read/
4	Int_enable-n
		Write
			1	Indicates ‘1’ at Port_event bit when Connected, Bias, Disabled, Fault bit changed.
			0	Indicates that suspend or resume processing is normal.
3	Fault	Read
			1	Indicates that suspend or resume processing occurred error.
		Write	-	Clears the bit value to ‘0’ by writing in ‘1’.
		Read/	-	Always indicates’0’.
2 - 0	reserved
		Write
			-	Always write in ‘0’.

Rev.1.0 92 Fujitsu VLSI