Yamaha DSP-AX1/RX-V1 Service Manual page 53

IC24 : PM4007A (P.C.B. DSP)
AC-3 RF Demodulator
AVDD
CPIN
CMIN
AGND
TM4
VDD
DIN
DOUT
DOUTB
C9M
GND
WINGT
SYST0
SYST1
ADST0
ADST1
TM5
BUNRI
AGND
AVDD
No. Name I/O
1 GND Ground (0V)
2 VDD +5V power supply
3 RESET I System resetting terminal (reset at "L")
4 OSCON I Oscillation control terminal. Oscillation ON at "H", set to "H" normally and to "L" when in standby state
5 DATA I IC test terminal, normally connected to ground (or unconnected)
6 MCK I IC test terminal, normally connected to ground (or unconnected)
7 MLTB I IC test terminal, normally connected to ground (or unconnected)
8 IDST O Output terminal for IC test
9 IDCK O Output terminal for IC test
10 IDO O Output terminal for IC test
11 TM0 I IC test terminal, normally connected to ground (or unconnected)
12 ECCK O Output terminal for IC test
13 DEN O Output terminal for IC test
14 DRY O Output terminal for IC test
15 MSYC O Output terminal for IC test
16 TM1 I IC test terminal, normally connected to ground (or unconnected)
17 A0 O External RAM address output. Address 0 (LSB)
18 A1 O External RAM address output. Address 1
19 A2 O External RAM address output. Address 2
20 A3 O External RAM address output. Address 3
21 A4 O External RAM address output. Address 4
22 A5 O External RAM address output. Address 5
23 TM2 I IC test terminal, normally connected to ground (or unconnected)
24 TM3 I IC test terminal, normally connected to ground (or unconnected)
25 XOUT O Output terminal for IC test
26 XIN I IC test terminal, normally connected to ground (or unconnected)
27 XEXT I IC test terminal, normally connected to ground (or unconnected)
28 GND Ground terminal (0V)
29 VDD +5V power supply
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Function
DSP-AX1/RX-V1
DB1
DB2
DB3
DB4
DB5
DB6
DB7
A10
OEB
A11
GND
A9
A8
A13
WEB
A14
A12
VDD
GND
A7
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