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A31G22x
Abov A31G22x Control Unit Manuals
Manuals and User Guides for Abov A31G22x Control Unit. We have
1
Abov A31G22x Control Unit manual available for free PDF download: Manual
Abov A31G22x Manual (29 pages)
Brand:
Abov
| Category:
Control Unit
| Size: 0.82 MB
Table of Contents
Table of Contents
2
Glossary
4
Table 1. Definition of Terms
4
Introduction
5
Clock System
6
SCU Block Diagram
6
Table 2. Main Clock Branches
6
Figure 1. Clock Tree Configuration
7
Clock Sources for Peripherals
8
Figure 2. Peripheral Clock Selection (N = 1, 2, 3, 4, 5, 6 and 7)
8
Table 3. Clock Sources of Peripherals
9
Clock Sources
11
Table 4. Definition of Clock Sources
11
LSI Clock
12
F/W Configuration
12
HSI Clock
12
Figure 3. LSI Clock F/W Configuration
12
Figure 4. HSI Clock F/W Configuration
12
LSE Clock
13
H/W Configuration
13
Figure 5. SXTAL Oscillator Circuit
13
Table 5. LSE External Capacitive Load
13
F/W Configuration
14
Figure 6. LSE Clock F/W Configuration
14
HSE Clock
15
H/W Configuration
15
Figure 7. XTAL Oscillator Circuit
15
Table 6. HSE Frequency by VDDEXT and HSE External Capacitive Load
15
F/W Configuration
16
Figure 8. HSE Clock F/W Configuration
16
PLL Clock
17
PLL Block Diagram
17
Figure 9. PLL Block Diagram of A31G22X Series
17
Calculating PLL Output Frequency
18
F/W Configuration
19
Figure 10. PLL Clock F/W Configuration Example 1
19
Figure 11. PLL Clock F/W Configuration Example 2
21
Flash Access Timing
23
Wait Time Configuration
23
F/W Configuration
23
Figure 12. Flash Access Timing F/W Configuration
23
Table 7. Flash Wait Time Values
23
Output of System Main Clock
24
Figure 13. System Main Clock Output
24
Figure 14. Oscilloscope Measurement of CLKO Pin Output
25
Examples
26
Figure 15. Example Project Changing System Clock
26
Figure 16. Example Code Initializing Clock Source
26
References
27
Revision History
28
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