System Clock; User Extension Ios - QMTECH XC7A100T User Manual

2.2.3

System Clock

FPGA chip XC7A100T-2FTG676I has system clock frequency 50MHz which is directly provided by external
crystal. The crystal is designed with high accuracy and stability with low temperature drift 10ppm/°c. Below
image shows the detailed hardware design:
2.2.4

User Extension IOs

The core board has two 64P 2.54mm pitch f emale headers which are used f or extending user modules,
such as ADC/DAC module, audio/video module, ethernet module, etc.
BANK34/35 Voltage
Supply Pins.
Connected to VIN
power header.
R13
1
OE VDD
50 MHz
2
VSS OUT
Y 1
SG-8002JC-50.0000M-PCB
Figure 2-9. 50MHz System Clock
U2
1
VCCO_34_35
3
5
IO_A5
7
IO_A4
9
IO_A2
11
IO_C2
13
IO_D4
15
IO_D5
17
IO_B1
19
IO_D1
21
IO_E2
23
IO_F4
25
IO_G1
27
IO_H4
29
IO_H1
31
IO_G9_VREF
33
IO_L2
35
IO_N3
37
IO_K5
39
IO_L4
41
IO_P3
43
IO_J1
45
IO_M5_VREF
47
IO_T3
49
IO_P5_VREF
51
IO_M1
53
IO_P1
55
IO_R2
57
IO_U1
59
61
VIN_5V
63
HDR_32X2
QMTECH XC7A 100T Starter Kit
3V3
4.7K
4
C2
100NF
3
SY S_CLK
2
VCCO_34_35
4
6
IO_B5
8
IO_B4
10
IO_A3
12
IO_B2_VREF
14
IO_C4
16
IO_E5
18
IO_C1
20
IO_E1
22
IO_F2
24
IO_G4
26
IO_G2
28
IO_J4
30
IO_H2
32
IO_H9
34
IO_M2
36
IO_N2
38
IO_L5
40
IO_M4
42
IO_R3
44
IO_K1
46
IO_M6
48
IO_T4
50
IO_P6
52
IO_N1
54
IO_R1
56
IO_T2
58
IO_U2
60
62
VIN_5V
64
User Manual V01