Sony MEX-1HD Service Manual page 88

MEX-1HD
Pin No. Pin Name
54 to 56 DB12 to DB14
57 VSS6
58 DB15
59 to 63 ADR0 to ADR4
64 VSS7
65, 66 ADR5, ADR6
67 VDD3
68 VDE4
69 to 71 ADR7 to ADR9
72 VSS8
73 to 77
ADR10 to ADR14
78 XRD
79 VSS9
80 XWRU
81 XWRL
82 XCS
83 VDE5
84 VDD4
85 XIRQ
86 XDREQ0
87 VSS10
88 XDACK0
89 XDREQ1
90 XDACK1
91 SIOSI
92 SIOSO
93 SIOCS
94 VSS11
95 SIOCK
96 ACLK
97 XARQ
98 VDE6
99 XABS
100 ACDO
101 ACDI
102 DP3
103 TKURST
104 TKDBG
105 VDD5
106 VSS12
107 TKTCK
108 TKTDI
109 TKTMS
110 TKTDO
88
I/O
Two-way data bus with the CPU, CPU/ATA interface IC, USB interface IC, display controller,
I/O
64MB flash memory and 128MB SD-RAM
—
Ground terminal
Two-way data bus with the CPU, CPU/ATA interface IC, USB interface IC, display controller,
I/O
64MB flash memory and 128MB SD-RAM
I
Address signal input from the CPU
— Ground terminal
I
Address signal input from the CPU
—
Power supply terminal (+1.8V)
—
Power supply terminal (+3.3V)
I Address signal input from the CPU
—
Ground terminal
I
Address signal input from the CPU
I
Read enable signal input from the CPU
— Ground terminal
I
Write enable signal input from the CPU (upper byte)
I
Write enable signal input from the CPU (lower byte)
I
Chip select signal input from the CPU
— Power supply terminal (+3.3V)
—
Power supply terminal (+1.8V)
O
Interrupt request signal output to the ATA interface
O
USB DMA request signal output terminal Not used
—
Ground terminal
I
USB DMA acknowledge signal input terminal Not used
O
USB DMA request signal output terminal Not used
I
USB DMA acknowledge signal input terminal Not used
I
Serial data input from the EEPROM
O
Serial data output to the EEPROM
O
Chip select signal output to the EEPROM
—
Ground terminal
O
Serial data transfer clock signal output to the EEPROM
I
ATRAC3 data transfer clock signal input terminal Not used
O
ATRAC3 data request signal output terminal Not used
— Power supply terminal (+3.3V)
I
ATRAC3 data request signal input terminal Not used
O
ATRAC3 data output terminal Not used
I
ATRAC3 data input terminal Not used
O System wake up request signal output terminal Not used
I
Not used
I
Not used
—
Power supply terminal (+1.8V)
— Ground terminal
I
Not used
I
Not used
I
Not used
O Not used
Description