Denon CEOL RCD-N8, Service Manual

Page: 82 / 107

82
TC94A92FG
2009-05-27 8
Pin
No.
Symbol I/O Description
Default
Remarks
61
VDD3 - Power Supply pin for 3.3V Digital circuit -
62
BUS0
I/O
3I/F
Microprocessor I/F data input/output pin 0 I
CMOS Port
Schmitt input
Refer to [1.2 Pin Assinment Table]
63
BUS1
I/O
3I/F
Microprocessor I/F data input/output pin 1 I
CMOS Port
Schmitt input
Refer to [1.2 Pin Assinment Table]
64
BUS2
I/O
3I/F
Microprocessor I/F data input/output pin 2 I
CMOS Port
Schmitt input
Refer to [1.2 Pin Assinment Table]
65
BUS3
I/O
3I/F
Microprocessor I/F data input/output pin 3 I
CMOS Port
Schmitt input
Refer to [1.2 Pin Assinment Table]
66
BUCK
I
3I/F
Microprocessor I/F BUS clock Input pin I
Schmitt input
Refer to [1.2 Pin Assinment Table]
67
/CCE
I
3I/F
Microprocessor I/F chip enable input pin I
Schmitt input
Refer to [1.2 Pin Assinment Table]
68
MS
I
3I/F
Microprocessor I/F mode selection pin.
“H”: Parallel I/F, “L”: Serial I/F
I
Refer to [1.2 Pin Assinment Table]
69
/RST
I
3I/F
Reset Input pin I
Schmitt input
70
Test
I
3I/F
Test pin
（
”L” fixed
）
I
Connect to GND for normal operation
71
VDD1-1 - Power Supply pin for 1.5V Digital circuit -
72
VSS-1 - Grounding pin for 1.5V Digital circuit -
73
/SRAMSTB
I
3I/F
1Mbit SRAM stand by pin
（
/SRAMSTB="L"
）
I
74
VDDM1 - Power Supply for 1.5V 1Mbit SRAM circuit -
75
PDo
O
3AI/F
EFM and PLCK Phase difference signal output pin.
O
4-state output ( RVDD3,
RVSS3,PVREF, Hiz)
76
TMAX
O
3AI/F
TMAX detection result output pin
O
3-state output ( RVDD3, RVSS3, Hiz)
77
LPFN
I
3AI/F
PLL circuit LPF amplifier inversion input pin
I
78
LPFo
O
3AI/F
PLL circuit LPF amplifier Output pin
O
79
PVREF -
PLL circuit 1.65 V reference voltage pin.
-
Connected to VRO. Connect to
GND by 0.1uF and 100uF.
80
VCoF
O
3AI/F
VCO filter pin
O
Connect to GND by 0.01uF
3A I/F : 3 V analog circuit input/output pin.
1.5 I/F : 1.5Vdigital input/output pin.
3 I/F : 3 V digital input/output pin
.