Denon RCD-M33, Service Manual

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20
RCD-M35DAB/M33
TC94A20F-010 Terminal Function
Pin
No.
Symbol I/O Description of pin function Remark
1 /RESET I Hard Reset Input (H : Operation L : Reset) Schmitt input
2 MiMD I
Mode Select Input for MCU Interface (H : I 2 C)
Schmitt input. "H" when external DRAM is in use.
3 /MiCS I Chip Select Input for MCU Interface Schmitt input
4 /MiLP I Latch Pulse Input for MCU Interface Schmitt input
5 MiDio I/O
Data Input and Output for MCU Interface (I 2 C : SDA)
Schmitt input, Open Drain output External pull up
6 /MiCK I Clock Input for MCU Interface (I
2
C : SCL) Schmitt input
7 MiACK O Acknowledge Output for MCU Interface
8 VDDT - Power Supply for Digital Circuit (3.3V)
9 SDo O Data Output
10 BCKo O Bit Clock Output
11 LRCKo O LR Clock Output
12 SDi0 I Data Input-0 Schmitt input
13 BCKiA I Bit Clock Input-A Schmitt input
14 LRCKiA I LR Clock Input-A Schmitt input
15 SDi1 I Data Input-1 (Address Output-5 for External SRAM) Schmitt input
16 BCKiB I Bit Clock Input-B Schmitt input
17 LRCKiB I LR Clock Input-B (Enable Signal Output for External SRAM) Schmitt input
18 VDD - Power Supply for Digital Circuit (2.5V)
19 STANBY I Control Input for Stand-by Mode (H : STB L : Normal)
20 VSS - GND for Digital Circuit
21 VSSL - GND for DAC Lch
22 VRAL - Reference Voltage for DAC Lch
23 LO O DAC Lch Output
24 VDAL - Power Supply for DAC Lch (2.5V)
25 VDAR - Power Supply for DAC Rch (2.5V)
26 RO O DAC Rch Input
27 VRAR - Reference Voltage for DAC Rch
28 VSSR - GND for DAC Rch
29 TESTP I TEST Terminal (H : Test Mode L : Normal) Fixed "L"
30 TXO O SPDIF output
31 Po0 O General Output port-0
32 Po1 O General Output port-1
33 Po2 O General Output port-2
34 Po3 O General Output port-3
35 VDDT - Power Supply for Digital Circuit (3.3V)
36 Po4 O General Output port-4
37 Po5 O General Output port-5 (Address Output-7 for External SRAM)
38 Po6 O General Output port-6 (Address Output-6 for External SRAM)
39 Po7 O General Output port-7
40 VSS - GND for Digital Circuit
41 IRQ/REQ I/O Interruption Input (BS I/F : REQ output) Schmitt input
42 VDDM - Power Supply for Built-in 1Mbit SRAM (2.5V)
43 Fi0 I Flag Input-0 Schmitt input
44 Fi1 I Flag Input-1 Schmitt input
45 VSSM - GND for Built-in 1Mbit SRAM
46 Pi0 I General Input-0 Schmitt input
47 Pi1 I General Input-1 Schmitt input
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