AV-S77
AV-S77
20
No.
Name
I/O
Function
53
CRC
O
AC-3 CRC error detect terminal
54
MUTE
O
Auto mute detect terminal
55
KARAOKE
O
AC-3 KARAOKE data detect terminal
56
SURENC
O
AC-3 2/0 mode Dolby surround encode input detect terminal
57
/SDBCK0
O
SDBCK0 invert clock output terminal
58
RAMA6
O
External SRAM address terminal 6
59
RAMA5
O
External SRAM address terminal 5
60
VSS
Ground terminal (for internal circuit)
61
RAMA4
O
External SRAM address terminal 4
62
/IC
Ics
Initial clear terminal
63
TEST
Test terminal (unconnected)
64
RAMA3
O
External SRAM address terminal 3
65
/CSB
Itsp
Sub DSP chip select input terminal
66
/CS
Its
Microprocessor interface chip select input terminal
67
SO
O*
Microprocessor interface data output terminal
68
SI
Its
Microprocessor interface and Sub DSP data input terminal
69
SCK
Its
Microprocessor interface and Sub DSP clock input terminal
70
RAMA2
O
External SRAM address terminal 2
71
VDD1
+5V power terminal (for terminal section)
72
RAMD0
Itp/O External SRAM data terminal (STREAM 0 output when external SRAM is not used)
73
RAMD1
Itp/O External SRAM data terminal (STREAM 1 output when external SRAM is not used)
74
RAMD2
Itp/O External SRAM data terminal (STREAM 2 output when external SRAM is not used)
75
RAMD3
Itp/O External SRAM data terminal (STREAM 3 output when external SRAM is not used)
76
RAMD4
Itp/O External SRAM data terminal (STREAM 4 output when external SRAM is not used)
77
RAMD5
Itp/O External SRAM data terminal (STREAM 5 output when external SRAM is not used)
78
RAMD6
Itp/O External SRAM data terminal (STREAM 6 output when external SRAM is not used)
79
RAMD7
Itp/O External SRAM data terminal (STREAM 7 output when external SRAM is not used)
80
VSS
Ground terminal (for terminal section)
81
VDD2
+3.3V power terminal (for internal circuit)
82
SDWCK0
It
Word clock input terminal for SDIA, SDOA, SDIB and SDOB signals
83
SDBCK0
It
Bit clock input terminal for SDIA, SDOA, SDIB and SDOB signals
84
SDIA0
It
AC-3/DTS bit stream (or PCM) data input terminal to Main DSP
85
SDIA1
It
AC-3/DTS bit stream (or PCM) data input terminal to Main DSP
86
RAMA1
O
External SRAM address terminal 1
87
RAMA0
O
External SRAM address terminal 0
88
RAMWEN
O
External SRAM write enable terminal
89
RAMOEN
O
External SRAM output enable terminal
90
VSS
Ground terminal
91
VDD2
+3.3V power terminal (for internal circuit)
92
IPORT7
Itp
General purpose input terminal (Used for IC YSS908/918 identification: +3.3V)
93
IPORT6
Itp
General purpose input terminal (GND)
94
IPORT5
Itp
General purpose input terminal (GND)
95
IPORT4
Itp
General purpose input terminal (GND)
96
IPORT3
Itp
General purpose input terminal (GND)
97
IPORT2
Itp
General purpose input terminal (GND)
98
IPORT1
Itp
General purpose input terminal (GND)
99
IPORT0
Itp
General purpose input terminal (GND)
100
VSS
Ground terminal
Ic: CMOS level input terminal
Is: Schmidt trigger input terminal
O: Digital output terminal
A: Analog input terminal
Note) Listed below are symbols in the I/O column and their meanings.
It: TTL level input terminal
Ip: Input terminal with pull-up resistor
O*: Tri-state digital output terminal
IC4 : YSS918D-F
AC3Dav
