Function Blocks - Atmel ATSAM4C-EK User Manual

3.3

Function Blocks

3.3.1 Processor
The ATSAM4C-EK board is equipped with a SAM4C16 device in an LQFP100 package.
Figure 3-3.
3.3.2 Clock Distribution
The ATSAM4C-EK board includes two clock systems (see
Table 3-1.
Qty
1
1
Figure 3-4. Clock System
{4}
RTC_32
C1 18pF
Y1
C 19 18pF
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SAM4C Processor
MN1
R1.R2 should close to SAM4C.
Do Not Populate
R2
PA30 0R/DNP
XOUT 50
PA30/XOUT
XIN 51
PA31/XIN
PA31
R1 0R/DNP
40
XIN32
XIN32
XOUT32 41
XOUT32
NRST 48
NRST
TST 38
TST
TMP0 39
{7} TMP0 TMP0
SHDN 37
{4} SHDN
SHDN
JTAGSEL 36
JTAGSEL
29
PC9
ERASE/PC9
FWUP 35
{7} FWUP
FWUP
PB0 26
TDI/PB0
30
PB1
TDO/TRACESWO/PB1
PB2 28
TMS/SWDIO/PB2
PB3 27
TCK/SWCLK/PB3
VDDIN
Components Clock System
Description
Crystal for Internal Clock 8 MHz
Crystal for RTC Clock 32.768 kHz
Do Not Populate
R3
0R_DNP
R4 0R
32.768 kHz
XOUT32
0R
R5
ATMEL
Cortex-M4 Processor
SAM4C16CA-AU LQFP100
VDDOUT VDDCORE VDDPLL VDDLCD VDDIO
Table 3-1
C 20
XIN32
C 24
43
PB4
45
PB5
1
PB6
2
PB7
6
PB8
13
PB9
14
PB10
15
PB11
16
PB12
81
PB13/AD3
17
PB14
18
PB15
95
PB16
97
PB17
3
PB18
5
PB19
88
PB20
87
PB21
7
PB22
80
PB23/AD4
10
PB24
9
PB25
93
PB26
91
PB27
94
PB28
12
PB29
8
PB30
79
PB31/AD5
47
PC0
31
PC1
58
PC2
57
PC3
56
PC4
55
PC5
32
PC6
46
PC7
54
PC8
77
ADVREF
VDDBU
and Figure 3-4).
Component Assignment
Y2
Y1
R6 0R
18pF
Y2
8MHz
18pF
0R
R9
ATSAM4C-EK [USER GUIDE]
11251A–ATARM–16-Dec-13
PB4
PB5
PB6
PB7
PB8
PB9
PB10
PB11
PB12
PB13
PB14
PB15
PB16
PB17
PB18
PB19
PB20
PB21
PB22
PB23
PB24
PB25
PB26
PB27
PB28
PB29
PB30
PB31
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PC8
VDDREF
XOUT
XIN
9