Yamaha YMC-700 Service Manual page 57

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• Microprocessor extended port 2
IC356: 74LVC574APW (DIGITAL P.C.B.)
Octal D type flip flop with 5 V tolerant inputs/outputs positive edge trigger 3-state
Pin No.
TE
L 13942296513
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Port Name
1 OE
2 D0
3 D1
4 D2
5 D3
6 D4
7 D5
8 D6
9 D7
10 GND
11 CP
12 7Q
13 6Q
14 5Q
15 4Q
16 3Q
17 2Q
18 1Q
19 0Q
20 VCC
x ao
y
i
8
OE 1 20 Vcc
D0 2 19
D1 3 18
4 17
D2
D3 5 16
D4
6 15
D5 7 14
D6
8 13
9 12 Q7
D7
GND 10 11 CP
Function Name
/EXPE Extended port enable
D00 Data bus 00
D01 Data bus 01
D02 Data bus 02
D03 Data bus 03
D04 Data bus 04
D05 Data bus 05
D06 Data bus 06
Q Q
3 6 7 1 3
D07 Data bus 07
DGND Ground of external
– –
IR_N_PASS IR pass through control
FPGA_N_CFG FPGA nConfig
ETHER_FSEL Ethernet controller FIFO selector
AD_HDMI_OE HDMI audio up-conversion output enable
HRX_HPDC HDMI RX HPD for port C
HRX_HPDB HDMI RX HPD for port B
HRX_HPDA HDMI RX HPD for port A
HTX_5V_PON HDMI Tx 5V power control
VCC Power supply +3.3V
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YMC-700/YMC-500
2 9 9 4 2 8
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Detail of Function
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9
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