FUJITSU MB86617A - Manual (Page 96)

LSI S pecification MB86617A
Rev.1.0 Fujitsu VLSI
91
8.9. Physical register #0A, 0B, 0C (read/write)
Physical Register#0A, 0B, 0C are the registers that indicate bias detect condition of IEEE1394 installed in this node and performs setting
of enable/disable of IEEE1394 port.
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
R Bias-0
12 h
W
- - - - - - - - - - - - - -
-
Disabl
ed-0
R Bias-1
14h
W
- - - - - - - - - - - - - -
-
Disabl
ed-1
R Bias-2
16h
W
- - - - - - - - - - - - - -
-
Disabl
ed-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 - 2 reserved
Write - Always write in ‘0’.
0 Indicates that bias voltage is not detected at 1394 port n.
Read
1 Indicates that bias voltage is detected at 1394 port n. 1 Bias-n
Write - Always indicates ‘0’.
0 Enables 1394 port n.
0 Disabled-n
Read/
Write
1 Disable 1394 port n.