Sony HCD-DX375 - Page 74

74
HCD-DX375
Pin No. Pin Name I/O Description
48 MSW I Mute signal control output
49 CKSW — Not used
50 OCSW — Not used
51 EEWP O WF signal output to EEPROM (IC103)
52 DVDD18 — Power supply (+1.8V from IC110)
53 to 59 HA 2 to 8 O Address bus 2 to 8 output to FLASH ROM (IC102)
60, 61 HA18, 19 O Address bus 18, 19 output to FLASH ROM (IC102)
62 DVSS — Ground terminal
63 APLLCAP I APLL external capacitance connection
64 APLLVSS — Ground terminal
65 APLLVDD3 — Power supply (+3.3V from IC105)
66 XWR O WE signal output to FLASH ROM (IC102)
67 to 72 HA 16 to 11 O Address bus 16 to 11 output to FLASH ROM (IC102)
73 DVDD3 — Power supply (SW+3.3V)
74, 75 HIGHA 10, 9 O Address bus 10, 9 output to FLASH ROM (IC102)
76 HA20 O Address bus 20 output to FLASH ROM (IC102)
77 XROMCS O CE signal output to FLASH ROM (IC102)
78 HA1 O Address bus 1 output to FLASH ROM (IC102)
79 XRD O OE signal output to FLASH ROM (IC102)
80 DVDD3 — Power supply (SW+3.3V)
81 to 84 HD 0 to 3 I Data bus 0 to 3 input from FLASH ROM (IC102)
85 DVSS — Ground terminal
86 to 88 HD 4 to 6 I Data bus 4 to 6 input from FLASH ROM (IC102)
89 HA21 O Address bus 21 output to FLASH ROM (IC102)
90 ALE O Address latch enable (not used)
91 HD7 I Data bus 7 input from FLASH ROM (IC102)
92 HA17 O Address bus 17 output to FLASH ROM (IC102)
93 HA0 O Address bus 0 output to FLASH ROM (IC102)
94 DVSS — Ground terminal
95 UWR I System controller write strobe (not used)
96 URD I System controller read strobe (not used)
97 DVDD18 — Power supply (+1.8V from IC110)
98 IFSDO O DVD SOD signal output to system controller (IC501)
99 IFSCK 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 (IC103)
103 SDA O SDA signal output to EEPROM (IC103)
104 TRG-SW O RS232 RXD signal output (not used)
105 XRST O RS232 reset signal output
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 XSYSRST I MTRST signal input from system controller (IC501)
111 IR I IR control signal input (not used)
112 XTXINT I External interrupt0 (not used)
113 DQMO O DQM0 signal output to SD-RAM (IC104)
114 XIFSSY I DQM signal input