The following tables highlight SERCOM features differences with respect
to the Pinout Multiplexing.
Table 1. SAM D21 Pinout Multiplexing
Comparison (Peripheral Function C and D)
Peripheral
Functions |
C (SERCOM) |
D (SERCOM ALT) |
Pin# |
SAM L10/L11 |
SAM D21 |
SAM L10/L11 |
SAM D21 |
SAM L10/L11 |
SAM D21 |
1 |
PA00/Xin32 |
PA00/Xin32 |
- |
- |
SERCOM0/PAD[2] |
SERCOM1/PAD[0] |
2 |
PA01/XOUT32 |
PA01/XOUT32 |
- |
- |
SERCOM0/PAD[3] |
SERCOM1/PAD[1] |
5 |
PA04 |
PA04 |
- |
- |
- |
SERCOM0/PAD[0] |
6 |
PA05 |
PA05 |
- |
- |
- |
SERCOM0/PAD[1] |
7 |
PA06 |
PA06 |
- |
- |
- |
SERCOM0/PAD[2] |
8 |
PA07 |
PA07 |
- |
- |
- |
SERCOM0/PAD[3] |
11 |
PA08 |
PA08 |
SERCOM1/PAD[0] |
SERCOM0/PAD[0] |
SERCOM2/PAD[0] |
SERCOM2/PAD[0] |
12 |
PA09 |
PA09 |
SERCOM1/PAD[1] |
SERCOM0/PAD[1] |
SERCOM2/PAD[1] |
SERCOM2/PAD[1] |
13 |
PA10 |
PA10 |
SERCOM1/PAD[2] |
SERCOM0/PAD[2] |
SERCOM2/PAD[2] |
SERCOM2/PAD[2] |
14 |
PA11 |
PA11 |
SERCOM1/PAD[3] |
SERCOM0/PAD[3] |
SERCOM2/PAD[3] |
SERCOM2/PAD[3] |
15 |
PA14/XIN |
PA14/XIN |
SERCOM2/PAD[2] |
SERCOM2/PAD[2] |
SERCOM0/PAD[2] |
SERCOM4/PAD[2] |
16 |
PA15/XOUT |
PA15/XOUT |
SERCOM2/PAD[3] |
SERCOM2/PAD[3] |
SERCOM0/PAD[3] |
SERCOM4/PAD[3] |
17 |
PA16 |
PA16 |
SERCOM1/PAD[0] |
SERCOM1/PAD[0] |
SERCOM0/PAD[0] |
SERCOM3/PAD[0] |
18 |
PA17 |
PA17 |
SERCOM1/PAD[1] |
SERCOM1/PAD[1] |
SERCOM0/PAD[1] |
SERCOM3/PAD[1] |
19 |
PA18 |
PA18 |
SERCOM1/PAD[2] |
SERCOM1/PAD[2] |
SERCOM0/PAD[2] |
SERCOM3/PAD[2] |
20 |
PA19 |
PA19 |
SERCOM1/PAD[3] |
SERCOM1/PAD[3] |
SERCOM0/PAD[3] |
SERCOM3/PAD[3] |
21 |
PA22 |
PA22 |
SERCOM0/PAD[0] |
SERCOM3/PAD[0] |
SERCOM2/PAD[0] |
SERCOM5/PAD[0] |
22 |
PA23 |
PA23 |
SERCOM0/PAD[1] |
SERCOM3/PAD[1] |
SERCOM2/PAD[1] |
SERCOM5/PAD[1] |
23 |
PA24 |
PA24 |
SERCOM0/PAD[2] |
SERCOM3/PAD[2] |
SERCOM2/PAD[2] |
SERCOM5/PAD[2] |
24 |
PA25 |
PA25 |
SERCOM0/PAD[3] |
SERCOM3/PAD[3] |
SERCOM2/PAD[3] |
SERCOM5/PAD[3] |
31 |
PA30 |
PA30 |
- |
- |
SERCOM1/PAD[2] |
SERCOM1/PAD[2] |
32 |
PA31 |
PA31 |
- |
- |
SERCOM1/PAD[3] |
SERCOM1/PAD[3] |
Table 2. SERCOM Features Comparison with SAM D21 (Peripheral Function C)
Pin
Name |
PA08, PA09 |
PA10,
PA11 |
PA16,
PA17 |
PA18, PA19 |
PA22, PA23 |
PA24, PA25 |
Features / SERCOM Instances |
SAM L10/L11 SERCOM1 |
SAM D21 SERCOM0 |
SAM L10/L11 SERCOM1 |
SAM D21 SERCOM0 |
SAM
L10/L11 - SAM D21 SERCOM1 |
SAM
L10/L11 - SAM D21 SERCOM1 |
SAM L10/L11 SERCOM0 |
SAM D21 SERCOM3 |
SAM L10/L11 SERCOM0 |
SAM D21 SERCOM3 |
I2C |
Full Speed |
No |
Yes |
No |
No |
Yes |
Yes |
No |
No |
Yes |
Yes |
No |
No |
Fast Mode Plus |
No |
Yes |
No |
No |
Yes |
Yes |
No |
No |
Yes |
Yes |
No |
No |
High Speed |
No |
Yes |
No |
No |
No |
Yes |
No |
No |
Yes |
Yes |
No |
No |
USART |
Auto-baud mode |
No |
Yes |
No |
Yes |
No |
Yes |
No |
Yes |
No |
Yes |
No |
Yes |
LIN Client |
No |
Yes |
No |
Yes |
No |
Yes |
No |
Yes |
No |
Yes |
No |
Yes |
Table 3. SERCOM Features Comparison with SAM D21 (Peripheral Function D)
Pin
Name |
PA00,
PA01 |
PA04,
PA05, PA06, PA07 |
PA08,
PA09 |
PA14, PA15 |
PA16, PA17 |
PA18, PA19 |
PA22, PA23 |
PA30, PA31 |
Features / SERCOM Instances |
SAM L10/L11 SERCOM0 |
SAM D21 SERCOM1 |
SAM
L10/L11 - SAM D21 SERCOM0 |
SAM
L10/L11 - SAM D21 SERCOM2 |
SAM L10/L11 SERCOM0 |
SAM D21 SERCOM4 |
SAM L10/L11 SERCOM0 |
SAM D21 SERCOM3 |
SAM L10/L11 SERCOM0 |
SAM D21 SERCOM3 |
SAM L10/L11 SERCOM2 |
SAM D21 SERCOM5 |
SAM L10/L11 SERCOM1 |
SAM D21 SERCOM5 |
I2C |
Full Speed |
No |
No |
No |
No |
No |
Yes |
No |
No |
Yes |
Yes |
No |
No |
No |
Yes |
No |
No |
Fast Mode Plus |
No |
No |
No |
No |
No |
Yes |
No |
No |
Yes |
Yes |
No |
No |
No |
Yes |
No |
No |
High Speed |
No |
No |
No |
No |
No |
Yes |
No |
No |
Yes |
Yes |
No |
No |
No |
Yes |
No |
No |
USART |
Auto-baud mode |
No |
Yes |
No |
Yes |
Yes |
Yes |
No |
Yes |
No |
Yes |
No |
Yes |
Yes |
Yes |
No |
Yes |
LIN Client |
No |
Yes |
No |
Yes |
Yes |
Yes |
No |
Yes |
No |
Yes |
No |
Yes |
Yes |
Yes |
No |
Yes |