VT82C686B ETC-unknow, VT82C686B Datasheet - Page 52

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VT82C686B

Manufacturer Part Number
VT82C686B
Description
Manufacturer
ETC-unknow
Datasheet
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Index EE – Serial Port Configuration (00h) ................... RW
Index EF – Power Down Control (00h) ........................... RW
Revision 1.71 June 9, 2000
5-3
7-6
7
6
2
1
0
5
4
3
2
1
0
7HFKQRORJLHV ,QF
Serial Port 2 High Speed Enable
Serial Port 1 High Speed Enable
Serial Port 2 Mode
Serial Port 2 Half Duplex
Serial Port 2 TX Output Inversion
Serial Port 2 RX Input Inversion
Reserved
Clock Power Down
Parallel Port Power Down
Serial Port 2 Power Down
Serial Port 1 Power Down
FDC Power Down
All Power Down
000 Standard ................................................default
001 IrDA (HIPSIR)
010 Amplitude shift keyed IR @ 500KHz
011 -reserved-
1xx -reserved-
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Disable ...................................................default
Enable
Disable ...................................................default
Enable
Disable ...................................................default
Enable
Disable ...................................................default
Enable
Disable ...................................................default
Enable
Normal operation ...................................default
Power Down
Normal operation ...................................default
Power Down
Normal operation ...................................default
Power Down
Normal operation ...................................default
Power Down
Normal operation ...................................default
Power Down
Normal operation ...................................default
Power Down All
........................................ always reads 0
-46-
Index F0 – Parallel Port Control (00h) ........................... RW
Index F1 – Serial Port Control (00h) .............................. RW
Index F2 – Test Mode (Do Not Program) ....................... RW
Index F4 – Test Mode (Do Not Program) ....................... RW
3-0
7-6
1-0
7
6
5
4
5
4
3
2
PS2 Type BiDirectionl Parallel Port
EPP Direction by Register not by IOW
EPP+ECP
EPP Version
Reserved
Reserved
IR Loop Back
Serial Port 2 Power-Down State
Serial Port 1 Power-Down State
IR Dedicated Pin (IRTX/IRRX) Select
Reserved
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Disable................................................... default
Enable
Disable................................................... default
Enable
Disable................................................... default
Enable
Version 1.9 ............................................ default
Version 1.7
Disable................................................... default
Enable
Normal................................................... default
Tristate output in power down mode
Normal................................................... default
Tristate output in power down mode
IRTX / IRRX Output from Serial Port 2...... def
Function 0 Rx76[5] = 0:
IRRX output from dedicated pin D12
IRTX output from dedicated pin E12
Register Descriptions - Super-I/O I/O Ports
........................................always reads 0
........................................always reads 0
........................................always reads 0
VT82C686B

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