SAM4L Datasheet, PDF (155/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

12.3 Block Diagram
Figure 12-1. BSCIF Block Diagram
APB BUS
ATSAM4L4/L2
Reset
Controller
NVIC
XIN32
XOUT32
Voltage Regulation
System
BANDGAP
VOLTAGE
REGULATOR
RC1M
TEMPERATURE
SENSOR
BOD18
BACKUP
REGISTERS
BACKUP SYSTEM
CONTROL
INTERFACE
(BSCIF)
BOD33
RC32K
OSC32K
PMCON.CK32S
(from BPM)
12.4 I/O Lines Description
Table 12-1.
Pin Name
XIN32
XOUT32
I/O Lines Description
Pin Description
Crystal 32 Input
Crystal 32 Output
WATCHDOG
TIMER
ASYNCHRONOUS
TIMER
BACKUP DOMAIN
Type
Analog/Digital
Analog
42023C–SAM–02/2013
155