Tv-Out Extension; Software Controlled Leds - Atmel AT91SAM9G45-EKES User Manual

Board Description
4.2.8

TV-Out Extension

The Chrontel
by converting LCD signals to TV signals.
The CH7024 is a TV encoder device which encodes the video signals and generates synchronization
signals for NTSC and PAL standards. Supported TV output formats are NTSC-M, NTSC-J, NTSC-433,
PAL-B/D/G/A/I, PAL-M, PAL-N and PAL-60. The CH7024 provides video output support for CVBS or S-
video.
Figure 4-12. TV-Out Extension Port
PE[0..30]
4.2.9

Software Controlled LEDs

Three users LED are provided for general use. The LEDs are connected to PIO port lines, allowing their
control through either GPIO or PWM control.
LEDs D6 to D8 are software controlled by PIO pins.
LEDs D9 to D11 indicate Ethernet traffic and link status. These are automatically managed by on-chip
microcontroller hardware. See
4-16
6481B–ATARM–27-Nov-09
™
CH7024 chip provides an interface between the SAM9G45 LCD Controller and a TV set
PE30 (B7)
PE29 (B6)
PE28 (B5)
PE27 (B4)
PE26 (B3)
PE25 (B2)
PE24 (B1)
PE23 (B0)
PE22 (G7)
PE21 (G6)
PE20 (G5)
PE19 (G4)
PE18 (G3)
PE17 (G2)
PE16 (G1)
PE15 (G0) PE23
PE14 (R7) PE24
PE13 (R6) PE25
PE12 (R5) PE26
PE11 (R4) PE27
PE10 (R3) PE28
PE9 (R2) PE29
PE8 (R1) PE30
PE7 (R0) PE15
PE6 (LCDDEN) PE16
PE5 (LCDDOTCK) PE17
PE4 (HSYNC) PE18
PE3 (VSYNC) PE19
PE2 (LCDCC) PE20
PE1 (LCDMOD) PE21
PE0 (LCDPW R) PE22
PE7
PE8
PE9
PE10
PE11
PE12
PE13
PE14
PE3
PE4
PE5
PE6
R117 R117 4.7K 4.7K
3V3
R118 R118 4.7K 4.7K
(TW DO)
PA20
(TW CK0)
PA21
NRST
3V3
R122 R122 DNP DNP
Y6 Y6
1 4
O E O E D D D D
13 MHz 13 MHz
2 3 R124 R124
S S S S O U T O U T
SG-8002JC-13.0000M-PCB SG-8002JC-13.0000M-PCB
DNP DNP C205 C205
DNP DNP
The frequency accuracy must be +-20ppm or higher.
Section 7.1 "Schematics"
MN23 MN23
42 38
D0 VDDIO
43 16
D1 DVDD
44
D2
45
D3
46
D4
47
D5
48 18
D6 DGND
1
D7
2
D8
3 32
D9 AVDD_PLL
4
D10
5
D11
6 31
D12 AGND_PLL
7
D13
8
D14
9 33
D15 AVDD
10
D16
11
D17
12 36
D18 AGND
13
D19
14
D20
15 25
D21 AVDD_DAC
17
D22
19
D23
29
AGND_DAC
39
V
40
H
41 30
XCLK ISET
20
DE
28
CVBS
R119 R119
27
Y
21
75R 75R
SPD
22
SPC
R121 R121
26
C/CVBS
23
75R 75R
RESET
24 37
NC P-OUT
CH7024B-DF-TR CH7024B-DF-TR
TP5 TP5
R125 R125
0R 0R
DNP DNP
Y7 Y7
4 3
1 2
C207 C207 13MHz 13MHz C206 C206
10pF 10pF 10pF 10pF
.
3V3
L18 L18
742792093 742792093
1V8
L19 L19
742792093 742792093
C190 C190 C191 C191 C192 C192 C193 C193
10uF 10uF 10uF 10uF
100nF 100nF 100nF 100nF
10V 10V 10V 10V
L20 L20
C194 C194 742792093 742792093
100nF 100nF
3V3
L21 L21
C195 C195 742792093 742792093
100nF 100nF C196 C196
10uF 10uF
10V 10V
L22 L22
C197 C197 742792093 742792093
100nF 100nF
C198 C198
R116 R116
33pF 33pF
1.2K 1% 1.2K 1%
L24 L24
1.8uH 1.8uH
C200 C200 D13 D13
R120 R120 C199 C199 270pF 270pF 1
100pF 100pF
75R 75R
BAT54SLT1G BAT54SLT1G
Composite Video Output
AT91SAM9G45-EKES User Guide
3V3
J20 J20
3
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