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Low-Power, 32-bit Cortex-M0+ MCUs with 12-bit ADC, 10-bit DAC, 256-Channel PTC, RTC, and SERCOM

ATSAMD20E14 ATSAMD20E15 ATSAMD20E16 ATSAMD20E17 ATSAMD20E18 ATSAMD20G14 ATSAMD20G15 ATSAMD20G16 ATSAMD20G17 ATSAMD20G18 ATSAMD20J14 ATSAMD20J15 ATSAMD20J16 ATSAMD20J17 ATSAMD20J18 ATSAMD20E14B ATSAMD20E15B ATSAMD20E15BU ATSAMD20E16B ATSAMD20E16BU ATSAMD20G14B ATSAMD20G15B ATSAMD20G16B ATSAMD20G17U ATSAMD20G18U ATSAMD20J14B ATSAMD20J15B ATSAMD20J16B ATSAMD20J18B

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25 SERCOM SPI – SERCOM Serial Peripheral Interface
25.3 Block Diagram

Features
1 Configuration Summary
2 Ordering Information ⁽¹⁾
3 Block Diagram
4 Pinout
5 Signal Descriptions List
6 I/O Multiplexing and Considerations
7 Power Supply and Start-Up Considerations
8 Product Mapping
9 Memories
10 Processor And Architecture
11 Peripherals Configuration Summary
12 DSU - Device Service Unit
13 Clock System
14 GCLK - Generic Clock Controller
15 Power Manager (PM)
16 SYSCTRL – System Controller
17 WDT – Watchdog Timer
18 RTC – Real-Time Counter
19 EIC – External Interrupt Controller
20 NVMCTRL – Nonvolatile Memory Controller
21 PORT - I/O Pin Controller
22 Event System (EVSYS)
23 SERCOM – Serial Communication Interface
24 SERCOM USART
25 SERCOM SPI – SERCOM Serial Peripheral Interface
26 SERCOM I²C – Inter-Integrated Circuit
27 TC – Timer/Counter
28 Analog-to-Digital Converter (ADC)
29 AC – Analog Comparators
30 DAC – Digital-to-Analog Converter
31 PTC - Peripheral Touch Controller
32 Electrical Characteristics at 85°C
33 Electrical Characteristics at 105°C
34 AEC-Q100 Electrical Characteristics at 125℃
35 Packaging Information
36 Schematic Checklist
37 Datasheet Revision History
38 Conventions
39 Acronyms and Abbreviations
The Microchip Website
Product Change Notification Service
Customer Support
Microchip Devices Code Protection Feature
Legal Notice
Trademarks
Quality Management System
Worldwide Sales and Service

25.3 Block Diagram

Figure 25-1. Full-Duplex SPI Host Client Interconnection

The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.

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