Push-Button System Reset; Figure 6 Pwm Pins; Figure 7 Pwm Circuit; Figure 8 Push-Button System Reset - Microsemi SmartFusion UG0209 User Manual

Component Descriptions and Connections
waveforms can be displayed through the mixed signal header. In addition, one PWM RC circuit source is
routed to the AV input pin of an analog quad. This AV pin can be used to monitor the generated voltage
with high accuracy, depending on the ADC resolution configured in the FPGA.
Figure 6 • PWM Pins
MSS_GP_IO_14
F2-200-IO_0
F2-200-IO_1
F2-200-IO_4
F2-200-IO_6
F2-200-IO_7
DACOUT0
The following figure shows the A2F200 pins driving PWM and the PWM circuit.
Figure 7 • PWM Circuit
5.4

Push-Button System Reset

A push-button system reset switch with a schmitt trigger is provided on the board, as shown in the
following figure. The Schmitt trigger reduces noise on the system reset push-button. The SmartFusion
MSS reset is synchronized with this reset.
Figure 8 • Push-Button System Reset
NL-0.1uF-0402 NL-0.1uF-0402
25
F2-200-14-MSSIO
27
F2-200-0-FPGAIO
29
F2-200-1-FPGAIO
31
DGND6
33
F2-200-4-FPGAIO
35
F2-200-6-FPGAIO
37
F2-200-7-FPGAIO
39
PWM0
F2-200 PWM0
41
DGND8
43
AGND1
45
OBD0
47
AGND3
R314 R314
PWM0
4K7-00603 4K7-00603
C283 220nF-0603 C283 220nF-0603
R316 R316
PWM1
4K7-00603 4K7-00603
C284 220nF-0603 C284 220nF-0603
V3P3
U53 U53
C245 C245
2
VCC
RST
3
GND
NL-DS1818 NL-DS1818
UG0209 User Guide Revision 7.1
26
F2-200-15-MSSIO MSS_GP_IO_15
28
DGND5
30
F2-200-IO_2
F2-200-2-FPGAIO
32
F2-200-IO_3
F2-200-3-FPGAIO
34
F2-200-5-FPGAIO F2-200-IO_5
36
DGND7
38
F2-200-IO_8
F2-200-8-FPGAIO
40
F2-200 PWM1
42
DGND9
44
AGND2
46
OBD1
48
AGND4
R281 R281 100K-0603 100K-0603
F2-200-PWM0
R289 R289 100K-0603 100K-0603
F2-200-PWM1
MSS_RESET_N
V3P3
R34 R34 R35 R35
RST
10K-0603 10K-0603 39R-0603 39R-0603
1 2
C74 C74
4
KSC403J 50SH LFG KSC403J 50SH LFG
NL-0603 NL-0603
PWM1
DACOUT1
SW3 SW3
1
3
14