Device Block Diagram; System Diagram - Onkyo TX-SR876 Service Manual

IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS -15
Q3401, Q3501: D790E001BZDH300 (Audio DSP)
BLOCK DIAGRAM

Device Block Diagram

C67x+ CPU
I/O INT
32K Bytes
I/O Interrupts
Out

System Diagram

C67x+
DSP Core
Program
Cache
Crossbar Switch
EMIF
D1
Data 64
R/W
D2
Memory
Data 64
Controller
R/W
Program
Fetch
CSP
Program
Cache 256
PMP DMP
32 32
High-Performance
Crossbar Switch
32 32 32
MAX0 CONTROL MAX1
dMAX
DSP
McASP0
256K
Bytes
SPI1
RAM
I2C0
McASP1
768K
Bytes McASP2
ROM
SPIO
I2C1
RTI
dMAX UHPI
PLL
ASYNC
High Speed
FLASH
Parallel Data
Host
100-MHz/
Microprocessor
133-MHz
SDRAM
Program/Data
JTAG EMU
256 RAM
256K Bytes
Program/Data
256 ROM Page1
256K Bytes
Program/Data
256 ROM Page2
256K Bytes
Program/Data
256 ROM Page3
256K Bytes
32 32
32
32
Events
In
EMIF
Peripheral Interrupt and DMA Events
Audio Zone 1
SPI or I2C
Control (optional)
Audio Zone 2
Audio Zone 3
OSC
DSP Control
SPI or I2C
TX-SR876/SA876
McASP0
32
16 Serializers
32
32
McASP1
6 Serializers
32
32 McASP2
2 Serializers
+ DIT
32
32 SPI1
32 SPI0
32 I2C0
32 I2C1
32 RTI
32
UHPI
32
32 PLL
CODEC, DIR,
ADC, DAC, DSD,
Network
CODEC, DIR,
ADC, DAC, DSD,
Network
Digital Out,
TDM Port
6 Independent Audio
Zones (3 TX + 3 RX)
16 Serial Data Pins