Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet
Product codes
ATSAMD21-XPRO
8
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
3.
Block Diagram
1. Some products have different number of SERCOM instances, Timer/Counter instances, PTC signals and ADC sig-
nals. Refer to
for details.
2. The three TCC instances have different configurations, including the number of Waveform Output (WO) lines. Refer
to
for details.
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
2 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
PAD2
PAD3
WO0
VREFB
256/128/64/32KB
NVM
NVM
CONTROLLER
Cache
M
DMA
USB FS
DEVICE
MINI-HOST
DP
DM
3x TIMER / COUNTER
FOR CONTROL
WOn
IOBUS
FDPLL96M
DMA
DMA
DMA
DMA
DMA
MCK[1..0]
SCK[1..0]
SCK[1..0]
INTER-IC
SOUND
CONTROLLER
SD[1..0]
FS[1..0]
DMA
MEMORY
TRACE BUFFER
S
SOF 1KHZ
WO0
WO1
WO1
(2)
GENERIC CLOCK
CONTROLLER
CMP[1..0]