Datasheet

4. Block Diagram
6 x SERCOM
8 x Timer Counter
REAL TIME
COUNTER
AHB-APB
BRIDGE C
M
M
HIGH-SPEED
BUS MATRIX
PORT
PORT
WATCHDOG
TIMER
SERIAL
WIRE
SWDIO
S
CORTEX-M0+
PROCESSOR
Fmax 48 MHz
SWCLK
DEVICE
SERVICE
UNIT
AHB-APB
BRIDGE A
20-CHANNEL
12-bit ADC 350KSPS
AIN[19..0]
VREFA
AIN[3..0]
S
SRAM
CONTROLLER
32/16/8/4KB
RAM
M
RESET
CONTROLLER
SLEEP
CONTROLLER
CLOCK
CONTROLLER
POWER MANAGER
RESETN
5 x TIMER / COUNTER
EVENT SYSTEM
S
6 x SERCOM
Up to 4 ANALOG
COMPARATORS
SYSTEM CONTROLLER
XOUT
XIN
XOUT32
XIN32
OSCULP32K
OSC32K
OSC8M
DFLL48M
BOD33
XOSC32K
XOSC
VREF
X[15..0]
Y[15..0]
PERIPHERAL
TOUCH
CONTROLLER
PERIPHERAL
ACCESS CONTROLLER
AHB-APB
BRIDGE B
VREFA
VOUT
10-bit DAC
EXTERNAL INTERRUPT
CONTROLLER
PERIPHERAL
ACCESS CONTROLLER
PERIPHERAL
ACCESS CONTROLLER
EXTINT[15..0]
NMI
GCLK_IO[7..0]
S
PAD0
WO1
PAD1
PAD2
PAD3
WO0
VREFB
256/128/64/32KB
NVM
NVM
CONTROLLER
Cache
S
DMA
USB FS
DEVICE
MINI-HOST
DP
DM
4x TIMER / COUNTER
FOR CONTROL
WOn
IOBUS
FDPLL96M
DMA
DMA
DMA
DMA
DMA
MCK[1..0]
SCK[1..0]
INTER-IC
SOUND
CONTROLLER
SD[1..0]
FS[1..0]
DMA
MICRO
TRACE BUFFER
SOF 1KHZ
WO0
WO1
(2)
GENERIC CLOCK
CONTROLLER
CMP[1..0]
1. Some products have different number of SERCOM instances, Timer/Counter instances, PTC
signals and ADC signals. Refer to the Configuration Summary for details.
2. The TCC instances have different configurations, including the number of Waveform Output (WO)
lines. Refer to the TCC Configuration for details.
Related Links
2. Configuration Summary
SAM D21 Family
Block Diagram
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 16