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ThunderBird Avenger
TM
PCI Audio SAA7785
Accelerator
Philips Semiconductors Preliminary Specification
1999 Nov 12 4
FIGURE 1 BLOCK DIAGRAM
MIDI Interface
DSP DATA BUS
DSP CODE BUS
PCI
S/P DIF
INTRs
AC Link Interface
Bus
GamePort
I
2
S
Port
DSP Core
FM
Accelerator
Phase/Env
Accelerator
I
2
S
Interface
DSP Code
ROM
DSP Code
RAM
DSP
Memory
Controller
DSP Data
RAM
Virtual
Registers
AC LINK
Legacy
DMA
Interface
Multimedia
Timer
PLL
Test Logic
PLL Cell
Game Port
Interface
PCI
Configuration
Headers
Serial
Interrupt
Controller
PCI
Master/Slave
Interface
MIDI Regs
and UART
OPL3
Registers
SoundBlaster
Registers
DSP Interrupt
Controller
Sample Fetch
Accelerator
Host/DSP
Interface
Address
Generation
INTA#
Xtal_out
Prog
IIR Filter
Serial
CFG
Port
Test
Port
General
Purpose I/O
S/P DIF
Output
GPIO
AC97