VT82C686B
MIDI Interface
Signal Name
Pin #
I/O Signal Description
Y19
Y18
I
O
MSI
MSO
MIDI Serial In
MIDI Serial Out
AC97 Audio / Modem Interface
Signal Name
Pin #
I/O Signal Description
U15
Y16
V16
Y17
V17
W18
D2
O
O
O
I
I
I
ACRST
AC97 Reset
AC97 Serial Data Out
AC97 Sync
AC97 Serial Data In 2
AC97 Serial Data In
AC97 Bit Clock
AC97 Interrupt Request.
MC97 Interrupt Request.
Rx74[6] = 0.
ACSDOUT
ACSYNC
ACSDIN2
ACSDIN
ACBTCK
/ DACK3#
/ DACK5#
O
O
Output of internal block.
Output of internal block. Rx77[7] = 1, Rx77[3] = 1,
AC97IRQ
MC97IRQ
L4
/ SERIRQ / GPO19
Game Port Interface
Signal Name
Pin #
I/O Signal Description
W16
T15
I
I
I
I
I
I
I
I
JAB1
JAB2
JBB1
JBB2
Joystick A Button 1
Joystick A Button 2
Joystick B Button 1
Joystick B Button 2
Joystick A X-axis
Joystick A Y-axis
Joystick B X-axis
Joystick B Y-axis
W17
U16
V15
Y15
U14
W15
/ GPO23
/ GPO22
/ GPI23
/ GPI22
JAX
JAY
JBX
JBY
See Function 0 Rx77[6]
Revision 1.71 June 9, 2000
-14-
Pinouts
ETC [ ETC ]
