Serial Peripheral Interface (Spi); External Memory Interface - Yamaha RX-V475 Service Manual

RX-V475/HTR-4066/RX-V500D

Serial Peripheral Interface (SPI)

Pin No. Function Name
D14 SPIDIN
D15 SPIDOUT
B16 SPICLK
C15 SPINCS0
B17 SPINCS1

External Memory Interface

Pin No. Function Name
T18
R18
P17
P18
N15
N16
N17
N18
D[15:0]
M15
M16
M17
M18
L15
L16
L17
L18
E18
E17
E16
E15
D18
D17
D16 A[12:0]
C18
C17
C16
B18
A18
A17
F15 A13_RAS
F16 A14_CAS
F17 A15_BA0
F18 A16_BA1
G15 A17_DQM0
G16 A18_DQM1
H17
H16
H15 A[23:19]
G18
G17
74
I/O
I SPI data receive.
O SPI data transmit.
I/O SPI clock.
Multi-master mode: Chip-select input (used to detect bus conflict).
I/O Master only mode: Chip-select 1 output.
Slave mode: Chip-select input.
Multi-master mode: Chip-select 2 output.
I/O Master only mode: Chip-select 2 output.
Slave mode: Not used.
I/O
I/O Data bus for external memory and peripheral access.
O Address bus for external memory and peripheral access.
SRAM: Address output
O
SDRAM: Row access strobe
SRAM: Address output
O
SDRAM: Column access strobe
SRAM: Address output
O
SDRAM: Bank select
SRAM: Address output
O
SDRAM: Bank select
SRAM: Address output
O
SDRAM: Data mask
SRAM: Address output
O
SDRAM: Data mask
O Address bus for external memory and peripheral access.
Detail of Function
Detail of Function