GX20
6 – 19
CONFIDENTIAL
IC403 (LR38863): DISPLAY CONTROLLER
Pin No.
Terminal name
Input/Output
Description of terminal
1
DUMMY4
–
Dummy 4
2
VDDPLL
–
PLL Power supply 1.8 V (1.6 V~ 2.0 V)
3
PLLGND
–
PLL Ground
4
PLLDIV0
Input
PLL multiply switching signal
5
PLLDIV1
Input
PLL multiply switching signal
6
HSD0
Input/Output
Data bus for high-speed serial transfer
7
HSD1
Input/Output
Data bus for high-speed serial transfer
8
HSD2
Input/Output
Data bus for high-speed serial transfer
9
HSWRD
Input/Output
Read/Write determination signal for high-speed serial transfer
10
HSEN
Input/Output
High-speed serial data effective signal High is active
11
HSCK
Input/Output
Standard clock for high-speed serial transfer (5 to 33 MHz)
12
DUMMY3
–
Dummy 3
13*
PWM1/PORT8
Output
PWM output 1
General-purpose PORT output (default)
14
PLLDIV2
Input
PLL multiply switching signal
15
VDDCORE
–
CORE Power supply 1.8 V (1.6 V~ 2.0 V)
16
GND
–
Logic ground
17
SUBWR_B
Input/Output
Light signal for External display
18
GND
–
Logic ground
19
VDDCORE
–
CORE Power supply 1.8 V (1.6 V~ 2.0 V)
20
PWM0/PORT3
Output
PWM output 0
General-purpose PORT output (default)
21
SUBCS_B
Input/Output
Chip select signal for External display
22
CS_B
Input/Output
Device select signal (Display is active when CS_B is “Low”)
23
VDDIO
–
IO Power supply 3.0 V (2.7 V~ 3.3 V)
24
LCDINT
Output
External interrupt signal (Starting varies when interruption occurs.)
25*
GTDIO_B
Output
MPEG4ASIC internal core power-cut signal (“Low” is active.)
26
VDDIO
–
IO Power supply 3.0 V (2.7 V~ 3.3 V)
27
SUBDB1
Input/Output
Data bus for External display
28
BDATA[5] (B5)
Output
Display panel B output signa
29
BDATA[5] (B4)
Output
Display panel B output signa
30
BDATA[5] (B3)
Output
Display panel B output signa
31
GND
–
Logic ground
32
TESTI
Input
Test terminal (Connected to GND normally)
33
BSHS_B
Input/Output
External Bit Stream horizontal synchronization signal (“Low” is active)
34
WR_B
Input/Output
Host write strobe signal
35
SUBRS
Input/Output
Data determination signal for External display
36*
MP4 RESET_B
Output
MPEG4ASIC reset control signal (“Low” is active)
37
HSD6
Input/Output
Data bus for high-speed serial transfer
38
BDATA[2] (B2)
Output
Display panel B output signal
39
BDATA[2] (B1)
Output
Display panel B output signal
40
BDATA[2] (B0)
Output
Display panel B output signal
41*
EXCS_B1
Input/Output
Chip select output 1 (internal decode output)
42*
XOUT
Output
Oscillation circuit output
43
VDDIO
–
IO Power supply 3.0 V (2.7 V~ 3.3 V)
44
GND
–
Logic ground
45
SCANEN
Input
Full scan effective signal “High” is active
(Connected to GND normally)
46
RD_B
Input/Output
Host read strobe signal
47
RSP
Input/Output
Register selection signal
HOST_IF section : RSP = Low...Display access
RSP = High...Control access
Hyper_Serial section : RSP = Low...Control acces
RSP = High...Display access
48
GND
–
Logic ground
49
HSD3
Input/Output
Data bus for high-speed serial transfer
50
DCLK
Input/Output
Data sampling clock (display clock)
51
VSYNCInput/Output
Vertical synchronization signal
52
HSYNCInput/Output
Horizontal synchronization signal
53*
EXCS_B3
Input/Output
Chip select output 3 (internal decode output)
54
XIN
Input
Oscillation circuit input/External clock input signal
Clock input for full scan
55
SUBDB6
Input/Output
Data bus for External display
56
RESET_B
Input
Master reset (All registers are initialized when Low is activated)
Содержание GX20
Страница 38: ...GX20 2 32 CONFIDENTIAL Figure 64 Contact points Figure 65 Turning power on Points Push ...
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