Yamaha RX-V500D, Service Manual

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Serial Peripheral Interface (SPI)
External Memory Interface
Pin No. Function Name I/O Detail of Function
T18
R18
P17
P18
N15
N16
N17
N18
D[15:0] I/O Data bus for external memory and peripheral access.
M15
M16
M17
M18
L15
L16
L17
L18
E18
E17
E16
E15
D18
D17
D16 A[12:0] O Address bus for external memory and peripheral access.
C18
C17
C16
B18
A18
A17
F15 A13_RAS O
SRAM: Address output
SDRAM: Row access strobe
F16 A14_CAS O
SRAM: Address output
SDRAM: Column access strobe
F17 A15_BA0 O
SRAM: Address output
SDRAM: Bank select
F18 A16_BA1 O
SRAM: Address output
SDRAM: Bank select
G15 A17_DQM0 O
SRAM: Address output
SDRAM: Data mask
G16 A18_DQM1 O
SRAM: Address output
SDRAM: Data mask
H17
H16
H15 A[23:19] O Address bus for external memory and peripheral access.
G18
G17
Pin No. Function Name I/O Detail of Function
D14 SPIDIN I SPI data receive.
D15 SPIDOUT O SPI data transmit.
B16 SPICLK I/O SPI clock.
Multi-master mode: Chip-select input (used to detect bus conflict).
C15 SPINCS0 I/O Master only mode: Chip-select 1 output.
Slave mode: Chip-select input.
Multi-master mode: Chip-select 2 output.
B17 SPINCS1 I/O Master only mode: Chip-select 2 output.
Slave mode: Not used.
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RX-V475/HTR-4066/RX-V500D
RX-V475/HTR-4066/
RX-V50
0D