63
HCD-DX155/DX255
Pin No.
Pin Name
I/O
Description
48
DSEL
—
Not used
49
WIDE
I
Wide switch signal input tenminal
50
MSW
I
Mute signal control input
51
MAMUTE
O
MAMUTE signal output to system controller (IC501) (not used)
52
DVDD18
—
Power supply (+1.8V from IC1109)
53 to 58
IOA 2 to 7
O
Address bus 2 to 7 output to PROM (IC1102)
59
HIGHA0
O
Address bus 8 output to PROM (IC1102)
60, 61
IOA18, 19
O
Address bus 18, 19 output to PROM (IC1102)
62
DVSS
—
Ground terminal
63
APLLCAP
I
APLL external capacitance connection
64
APLLVSS
—
Ground terminal
65
VDD3
—
Power supply (+3.3V from IC1105)
66
I OWR
O
WE signal output to PROM (IC1102)
67
A16
O
Address bus 16 output to PROM (IC1102)
68 to 72
HIGHA 7 to 3
O
Address bus 15 to 11 output to PROM (IC1102)
73
DVDD3
—
Power supply (SW+3.3V)
74, 75
HIGHA 2, 1
O
Address bus 10, 9 output to PROM (IC1102)
76
IOA20
O
Address bus 20 output to PROM (IC1102)
77
IOCS
O
CE signal output to PROM (IC1102)
78
IOA1
O
Address bus 1 output to PROM (IC1102)
79
IOOE
O
OE signal output to PROM (IC1102)
80
DVDD3
—
Power supply (SW+3.3V)
81 to 84
AD 0 to 3
I
Data bus 0 to 3 input from PROM (IC1102)
85
DVSS
—
Ground terminal
86 to 88
AD 4 to 6
I
Data bus 4 to 6 input from PROM (IC1102)
89
IOA21
O
Address bus 21 output to PROM (IC1102)
90
ALE
O
Address latch enable (not used)
91
AD7
I
Data bus 7 input from PROM (IC1102)
92
A17
O
Address bus 17 output to PROM (IC1102)
93
IOA0
O
Address bus 0 output to PROM (IC1102)
94
DVSS
—
Ground terminal
95
UWA
I
System controller write strobe (not used)
96
URD
I
System controller read strobe (not used)
97
DVDD18
—
Power supply (+1.8V from IC1109)
98
IFSDO
O
DVD SOD signal input to system controller (IC501)
99
IFCK
O
DVD SCO signal output to system controller (IC501)
100
XIFCS
I
DVD XIFCS signal input from system controller (IC501)
101
IFSDI
I
VIFBUSY signal input from system controller (IC501)
102
SCL
O
SCL signal output to EEPROM (IC1103)
103
SDA
O
SDA signal output to EEPROM (IC1103)
104
TRG-SW
O
RS232 RXD signal output (not used)
105
IFBSY
I
RS232 TXD signal input from system controller (IC501)
106
RXD
I
RD232 RXD clock
107
TXD
I
RD232 TXD data
108
DVDD3
—
Power supply (SW+3.3V)
109
ICE
I
ICE mode enable (not used)
110
PRST
I
MTRST signal input from system controller (IC501)
111
IR
I
IR control signal input (not used)
112
INT0
I
External interrupt0 (not used)
Summary of Contents for HCD-DX155
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