SAA7785 Datasheet, PDF (23/68 Pages) NXP Semiconductors – ThunderBird Avenger PCI Audio Accelerator

Philips Semiconductors
ThunderBird Avenger^TM PCI Audio
Accelerator
JAB1
JBB2
JBB1
Joystick A Button 1 Interface
This pin functions as an input for the joystick A button 1.
Joystick B Button 2 Interface
This pin functions as an input for the joystick B button 2.
Joystick B Button 1 Interface
This pin functions as an input for the joystick B button 1.
Preliminary Specification
SAA7785
MIDI INTERFACE
MIDIIN
MIDI Serial Data Input
This signal is part of the standard 2 wire MIDI interface. This input receives MIDI data at a rate
of 31.25Kbaud. Optical isolation is required.
MIDIOUT
MIDI Serial Data Output
This signal is part of the standard 2 wire MIDI interface. This output transmits MIDI data at a
rate of 31.25Kbaud. Optical isolation is required.
AC’97 CODEC INTERFACE
SYNC
AC’97 Codec Synchronization/Frame Output
This signal is used to frame the tag packet from the AC link designer from the SAA7785 chip.
BIT_CLK
AC’97 Data Bit Clock
This signal is used to clock synchronous data on the AC link interface.
SDATA_OUT
AC’97 Serial Data Out
This is the time division multiplexed serial output data stream from the SAA7785 controller.
SDATA_IN0
AC’97 Serial Data In Port 0
This is the time division multiplexed serial input data stream from the primary external AC’97
codec.
SDATA_IN1
AC’97 Serial Data In Port 1
This is the time division multiplexed serial input data stream from the secondary external AC’97
codec.
1999 Nov 12
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