Yamaha MCR-330 Service Manual - Page 40

Serial clock input/output terminal, Serial data output terminal

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Page 40 highlights

CRX-330/NS-BP100 No. Port Name 50 N.C. 51 52 N.C. 53 VSS 54 STREQ 55 CS 56 N.C. 57 TX 58 RX 59 STCLK 60 N.C. 61 STDATA 62 VDDI 63 N.C. 64 Function Name Detail of Function PD5/IRQ2 PD4/IRQ1 PD1/SBI2 PD0/SBO2 P92/SBT0 P90/SBO0 VDD18 Ground External interrupt request signal input terminal External interrupt request signal input terminal Clock synchronization/start stop synchronization serial terminal Clock synchronization/start stop synchronization serial terminal Serial clock input/output terminal Serial data output terminal Power supply for internal circuit (1.8V ±0.15V) Connect all VDD18 terminals outside of chip. Also, connect a 10μF capacitor between VDD18 and VSS of No.10 pin and place it near LSI. CRX-330/NS-BP100 40

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40
CRX-330/NS-BP100
CRX-330/NS-BP100
No.
Port Name
Function Name
Detail of Function
50
N.C.
51
N.C.
52
53
VSS
Ground
54
STREQ
PD5/IRQ2
External interrupt request signal input terminal
55
CS
PD4/IRQ1
External interrupt request signal input terminal
56
N.C.
57
TX
PD1/SBI2
Clock synchronization/start stop synchronization serial terminal
58
RX
PD0/SBO2
Clock synchronization/start stop synchronization serial terminal
59
STCLK
P92/SBT0
Serial clock input/output terminal
60
N.C.
61
STDATA
P90/SBO0
Serial data output terminal
62
VDDI
VDD18
Power supply for internal circuit (1.8V ±0.15V)
Connect all VDD18 terminals outside of chip.
Also, connect a 10μF capacitor between VDD18 and VSS of No.10 pin and place it
near LSI.
63
N.C.
64