Sony Walkman NW-MS6, Руководство по обслуживанию

Страница: 37 / 46

37
NW-MS6
Pin No. Pin Name I/O Description
54 to 56 DB12 to DB14 I/O
Two-way data bus with the flash memory (IC5000), S-RAM (IC5600) and system controller
(IC7001)
57 VSS6 —
Ground terminal
58 DB15 I/O
Two-way data bus with the flash memory (IC5000), S-RAM (IC5600) and system controller
(IC7001)
59 to 63 ADR0 to ADR4 I
Address signal input from the system controller (IC7001)
64 VSS7 —
Ground terminal
65, 66 ADR5, ADR6 I
Address signal input from the system controller (IC7001)
67 VDD3 —
Power supply terminal (+1.8V)
68 VDE4 —
Power supply terminal (+2.8V)
69 to 71 ADR7 to ADR9 I
Address signal input from the system controller (IC7001)
72 VSS8 —
Ground terminal
73 to 77
ADR10 to ADR14
I
Address signal input from the system controller (IC7001)
78 RD I
Read enable signal input from the system controller (IC7001)
79 VSS9 —
Ground terminal
80 WRU I
Write enable signal input from the system controller (IC7001) (upper byte)
81 WRL I
Write enable signal input from the system controller (IC7001) (lower byte)
82 CS I
Chip select signal input from the system controller (IC7001)
83 VDE5 —
Power supply terminal (+2.8V)
84 VDD4 —
Power supply terminal (+1.8V)
85 IRQ O
Interrupt request signal output to the system controller (IC7001)
86 DREQ0 O
USB DMA request signal output terminal Not used (open)
87 VSS10 —
Ground terminal
88 DACK0 I
USB DMA acknowledge signal input terminal Not used (open)
89 TEST0 O
For test terminal Normally open
90 TEST1 I
For test terminal Normally open
91 SIOSI I
Serial data input from the EEPROM (IC6002)
92 SIOSO O
Serial data output to the EEPROM (IC6002)
93 SIOCS O
Chip select signal output to the EEPROM (IC6002)
94 VSS11 —
Ground terminal
95 SIOCK O
Serial data transfer clock signal output to the EEPROM (IC6002)
96 ACLK I
ATRAC3 data transfer clock signal input terminal Not used (fixed at “L”)
97 ARQ O
ATRAC3 data request signal output terminal Not used (open)
98 VDE6 —
Power supply terminal (+2.8V)
99 ABS I
ATRAC3 data request signal input terminal Not used (fixed at “L”)
100 ACDO O
ATRAC3 data output terminal Not used (open)
101 ACDI I
ATRAC3 data input terminal Not used (fixed at “L”)
102 DP3 O
System wake up request signal output to the system controller (IC7001)
103 TKURST I
Not used (fixed at “L”)
104 TKDBG I
Not used (fixed at “L”)
105 VDD5 —
Power supply terminal (+1.8V)
106 VSS12 —
Ground terminal
107 TKTCK I
Not used (fixed at “L”)
108 TKTDI I
Not used (fixed at “L”)
109 TKTMS I
Not used (fixed at “L”)
110 TKTDO O
Not used (open)