Figure 3-8. 32.768 kHz Crystal Oscillator Scheme
EP
65
TEST
10
RESET
2
JTAGSEL
63
VREFP
28
VDDUSB
26
VDDOUT
30
VDDIO
64
VDDIO
32
VDDIO
31
VDDIO
27
VDDIO
1
GND
53
GND
29
GND
13
VDDCORE
45
VDDCORE
9
PA08/XOUT32
12
PA07/XIN32
11
PA17/AD0
33
PA18/AD1
34
PA19/AD2
35
PA20/AD3
36
PB08/XOUT
59
PB09/XIN
60
PB00/AD4
37
PB01/AD5
38
PB02/AD6
39
PB03/AD7
40
PA00
6
PA01
7
PA02
61
PA03
5
PA04
4
PA05
8
PA06
17
PA09
49
PA10
48
PA11
44
PA12
43
PA13
42
PA14
41
PA15
22
PA16
18
PA21
25
PA22
24
PA23
23
PA24
58
PA25
56
PA26
52
PA27
51
PA28
21
PA29
20
PA30
19
PA31
16
PB10
46
PB11
47
PB12
3
PB13
57
PB14
15
PB15
14
PB04/TDI
62
PB05/TDO/TRACESWO
50
PB06/TMS/SWDIO
54
PB07/TCK/SWTCK
55
ATSAMG55J19B
U2
PA2
PA5
PA3
PA6
PA4
PA24
PA23
PA9
PA10
PA12
PA11
PA13
PA14
PA19
PA20
PA0
PA1
PA[0..31]
PA16
PA15
PA17
PA18
PA27
PA26
PA25
PA[0..31]
PB2
PB5
PB3
PB6
PB4
PB7
PB8
PB9
PB10
PB12
PB11
PB13
PB14
PB0
PB1
PB15
PB[0..15]
PB[0..15]
PA28
PA31
PA30
PA29
GND
PB[0..15]
PB[0..15]
PB[0..15]
PB[0..15]
PA[0..31]
PA[0..31]
.7uF
C40
4.7uF
C42
0.1uF
C43
0.1uF
C41
0.1uF
C35
0.1uF
C36
0.1uF
25V
0402
C32
GND
NRST
0R
R7
3V3
0.1uF
C44
VDDCORE
GND
ear pin 30
GND
ADVREF
0.1uF
C37
0.1uF
C38
0.1uF
C39
GND
3V3
3V3
USB_DP
USB_DN
USB_Device
32.768Khz
Y2
22pF
C48
22pF
C47
3.3.4
Reset
The reset sources of the PL360G55CB-EK board are:
• Power-on Reset function, embedded in the SAMG55 device.
• Push button reset. Both devices, SAMG55J19 and PL360, have a NRST pin: “NRST” for
SAMG55J19 and “NRST_360” for PL360. The user can manually reset the SAMG55J19, which
manages the PL360 reset, by using the push button SW1. See section
.
• JTAG reset from an in-circuit emulator.
3.3.5
PLC Coupling Circuitry Description
The European regulations concerning Power Line Communications are described in CENELEC standard
. This standard applies to electrical equipment using signals in the frequency range 3 kHz to
148,5 kHz to transmit information on low voltage electrical systems, either on the public supply system or
within installations in consumers' premises. The following figure shows the different frequency bands
allocated to the different applications.
PL360G55CB-EK
PL360G55CB-EK Board
©
2019 Microchip Technology Inc.
User Guide
DS50002871A-page 20
