Sony CDX-C90R Service Manual page 10

• IC500 HD6413002F16 (DISPLAY CONTROL)
Pin No. Pin Name
1 VDD
2 SIRCS
3 SIRCS
4 LCD-RST
5 ILL ON
6 EL ON
7 LCD-ST
8 CS-CTL
9 BOOTI
10 (RESO)
11 VSS
12 LCD-SO
13 UNI-SO
14 LCD-RX
15 UNI-SI
16 UNI-CO
17 UNI-CI
18 – 21 D0 – D3
22 VSS
23 – 34 D4 – D15
35 VDD
36 – 43 A0 – A7
44 VSS
45 – 56 A8 – A19
57 VSS
58 WAIT
59 (P61)
60 (P62)
61 NC
62 STBY
63 SYSRST
64 BU-IN
65 VSS
66 EXTAL
67 XTAL
68 VDD
69 AS
70 RD
71 HWR
72 LWR
73 MD0
74 MD1
75 MD2
76 AVDD
77 VREF
78 – 83 (AN0 – AN5)
84 BU-IN
85 PBS
86 AVSS
87 BUS-ON
88 SRAM-CS
89 DEC-CS
I/O
— Power supply pin (+5 V)
I Remote commander input
I Remote commander input
O LCD controller reset control output
O LCD controller power supply control output
O LCD back light EL power supply control output
O LCD controller information start request signal output
O SRAM master chip enable control output (Not used in this set.)
I Compulsory boot mode input
O Connect to GND.
O GND
O LCD controller serial data output
O BUS interface data output
I LCD controller serial data input
I BUS interface data input
O LCD controller serial clock ouput
I LCD controller serial clock input
I/O External RAM, ROM data bus input/output
— GND
I/O External RAM, ROM data bus input/output
— Power supply pin (+5 V)
O External RAM, ROM address bus output
— GND
O External RAM, ROM address bus output
— GND
O Not used.
— Not used.
— Not used.
— Not used.
I Hardware standby input (Fixed at "H".)
I Reset input
I Back-up power detection input
— GND
O Oscillation output (14.74 MHz)
I Oscillation input (14.74 MHz)
— Power supply pin (+5 V)
— Not used.
O Read signal output
O High write signal output
O Low write signal output
I Microcomputer operation mode input (Fixed at "L".)
I Microcomputer operation mode input (Fixed at "L".)
I Microcomputer operation mode input (Fixed at "H".)
I A/D converter power supply input
I A/D converter reference voltage input
— Connect to GND.
I Back-up power detection input
I Parking brake input
— A/D converter GND
I BUS-interface BUS-ON input
O SRAM chip enable output
O Demodulator LSI chip enable output (Not used in this set.)
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Pin Description