Yamaha EMX312SC, Service Manual, Page: 24 / 140

EMX512SC/EMX312SC
24
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LSI PIN DESCRIPTION
（LSI 端子機能表）
AK5381VT-E2 (X5219A00) ADC (Analog to Digital Converter).......................... 24
PCM1742KEG/2K (X3538A00) DAC (Digital to Analog Converter).................... 24
MX23L8103TC-90G (X5922A00) CPU ............................................................... 24
YMW767-VTZ (X6055A00) CPU ......................................................................... 25
• AK5381VT-E2 (X5219A00) ADC (Analog to Digital Converter)
DSP: ICM04
• PCM1742KEG/2K (X3538A00) DAC (Digital to Analog Converter)
DSP: ICM08
NOTES: (1) Schmitt-trigger input, 5V tolerant. (2) Schmitt-trigger with internalpull-down, 5V tolerant.
• MX23L8103TC-90G (X5922A00) CPU
DSP: ICM10
PIN
No.
NAME I/O FUNCTION
PIN
No.
NAME I/O FUNCTION
1 AINR I Rch Analog input pin 9 SDTO O Audio serial data output pin
2 AINL I Lch Analog input pin 10 LRCK I/O Output channnel clock pin
3 CKS1 I Mode select 1 pin 11 MCLK I Master clock input pin
4 VCOM O Common voltage output pin 12 SCLK I/O Audio serial data clock pin
5 AGND - Analog ground 13 PDN I Power down mode pin
6 VA - Analog power supply 14 DIF I Audio interface format pin
7 VD - Digital power supply 15 CKS2 I Mode select 2 pin
8 DGND - Digital ground 16 CKS0 I Mode select 0 pin
PIN
No.
NAME TYPE FUNCTION
PIN
No.
NAME TYPE FUNCTION
1 BCK IN Audio Data Bit Clock Input.
(1)
9 AGND Analog Ground
2 DATA IN Audio Data Digital Input.
(1)
10 V
COM
Common Voltage Decoupling.
3 LRCK IN L-Channel and R-Channel Audio Data
Latch Enable Input.
(1)
11 ZEROR/
ZEROA
OUT Zero Flag Output for R-Channel/Zero Flag
Output for L/R-Channel.
4 DGND Digital Ground 12 ZEROL/NA OUT Zero Flag Output for L-Channel/No Assign.
5 V
DD
Digital Power Supply, +3.3V 13 MD IN Mode Control Data Input.
(2)
6 V
CC
Analog Power Supply, +5V 14 MC IN Mode Control Clock Input.
(2)
7 V
OUT
L OUT Analog Output for L-Channel. 15 ML IN Mode Control Latch Input.
(2)
8 V
OUT
R OUT Analog Output for R-Channel. 16 SCK IN System Clock Input.
PIN
No.
NAME I/O FUNCTION
PIN
No.
NAME I/O FUNCTION
1 A15 I
Address bus
25 A0 I Address bus
2 A14 I 26 CE# I Chip enable
3 A13 I 27 VSS - Ground
4 A12 I 28 OE# I Output enable
5 A11 I 29 D0 O
Data bus
6 A10 I 30 D8 O
7 A9 I 31 D1 O
8 A8 I 32 D9 O
9 (N.C.) -
(Unused)
33 D2 O
10 (N.C.) - 34 D10 O
11 (N.C.) - 35 D3 O
12 (N.C.) - 36 D11 O
13 (N.C.) - 37 VCC - Power 3.3 V
14 (N.C.) - 38 D4 O
Data bus
15 (N.C.) - 39 D12 O
16 A18 I
Address bus
40 D5 O
17 A17 I 41 D13 O
18 A7 I 42 D6 O
19 A6 I 43 D14 O
20 A5 I 44 D7 O
21 A4 I 45 D15/A-1 I/O Data bus / LSB address
22 A3 I 46 VSS - Ground
23 A2 I 47 BYTE# - Word/byte mode selection
24 A1 I 48 A16 I Address bus