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8.5. ASC LEDs
As shown in
Figure
8.6, there are nine red LEDs to support ASC applications. They are connected to the ASC GPIOs as
listed in
Table
8.5. The LEDs illuminate when the GPIO is driven low.
Table 8.5. GPIO LED Connections
Signal Name
ASC_LED1
ASC_LED2
ASC_LED3
ASC_LED4
ASC_LED5
ASC_LED6
ASC_LED8
ASC_LED9
ASC_LED10
Caution:
The MachXO3-9400 Development Board contains ESD-sensitive components. ESD safe
practices should be followed while handling and using the development board.
Note:
The LEDs are lined up in sequence, as shown in
8.6. ASC HVOUT and Trim Pins
The ASC has four high-voltage charge-pump outputs (HVOUTs) and four Trim-DAC outputs (TRIMs) which are brought
out to test pins for user convenience as listed in
enable circuits and loads. The TRIMs are designed to drive the trim inputs of DC-DC converters to adjust the output
voltage.
Table 8.6. ASC HVOUT and Trim Connections
Signal Name
ASC_HVOUT1
ASC_HVOUT2
ASC_HVOUT3
ASC_HVOUT4
ASC_TRIM1
ASC_TRIM2
ASC_TRIM3
ASC_TRIM4
© 2017 Lattice Semiconductor Corp. All Lattice trademarks, registered trademarks, patents, and disclaimers are as listed at www.latticesemi.com/legal. All other brand or product names are
trademarks or registered trademarks of their respective holders. The specifications and information herein are subject to change without notice.
FPGA-EB-02004-1.0
Figure 8.6. ASC LEDs
ASC Pin Number
44
45
46
47
48
1
11
12
13
Table
8.6. The HVOUTs are designed to drive the gates of MOSFETs to
ASC Pin Number
10
39
40
41
42
LED
Breakout Test Point
D9
TP44
D10
TP45
D11
TP46
D12
TP47
D13
TP48
D14
TP49
D15
TP50
D16
TP51
D17
TP52
Figure
8.6.
2
3
9
MachXO3-9400 Development Board
Evaluation Board User Guide
Logic Level to Light
0
0
0
0
0
0
0
0
0
Breakout Test Point
TP40
TP41
TP42
TP43
TP36
TP37
TP38
TP39
33
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