Datasheet

Table 25-3. BAUD Register Value vs. Baud Frequency
BAUD Register Value Serial Engine CPF f
BAUD
at 48MHz Serial Engine Frequency (f
REF
)
0 – 406 160 3MHz
407 – 808 161 2.981MHz
809 – 1205 162 2.963MHz
... ... ...
65206 31775 15.11kHz
65207 31871 15.06kHz
65208 31969 15.01kHz
25.6.3 Additional Features
25.6.3.1 Address Match and Mask
The SERCOM address match and mask feature is capable of matching either one address, two unique
addresses, or a range of addresses with a mask, based on the mode selected. The match uses seven or
eight bits, depending on the mode.
25.6.3.1.1 Address With Mask
An address written to the Address bits in the Address register (ADDR.ADDR), and a mask written to the
Address Mask bits in the Address register (ADDR.ADDRMASK) will yield an address match. All bits that
are masked are not included in the match. Note that writing the ADDR.ADDRMASK to 'all zeros' will
match a single unique address, while writing ADDR.ADDRMASK to 'all ones' will result in all addresses
being accepted.
Figure 25-4. Address With Mask
rx shift register
ADDRMASK
ADDR
==
Match
25.6.3.1.2 Two Unique Addresses
The two addresses written to ADDR and ADDRMASK will cause a match.
Figure 25-5. Two Unique Addresses
ADDRMASK
rx shift register
ADDR
==
Match
==
SAM D21 Family
SERCOM – Serial Communication Interface
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 465