ATSAM3S1BA-AU Atmel, ATSAM3S1BA-AU Datasheet - Page 850

• Manufacturer Part Number: ATSAM3S1BA-AU
• Description: IC MCU 32BIT 64KB FLASH 64LQFP
• Manufacturer: Atmel
• Series: SAM3Sr

Specifications of ATSAM3S1BA-AU

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 64MHz
• Connectivity: I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 47
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.62 V ~ 1.95 V
• Data Converters: A/D 10x10/12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Controller Family/series: ATSAM3S
• No. Of I/o's: 47
• Ram Memory Size: 16KB
• Cpu Speed: 64MHz
• No. Of Timers: 6
• Rohs Compliant: Yes
• Processor Series: ATSAM3x
• Core: ARM Cortex M3
• 3rd Party Development Tools: JTRACE-CM3, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: ATSAM3S-EK
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

36.6.2
36.6.2.1
Figure 36-3. Functional View of the Channel Block Diagram
850
Peripheral Bus
Generator
from APB
Clock
from
z = 0 (x = 0, y = 1),
z = 1 (x = 2, y = 3),
z = 2 (x = 4, y = 5),
z = 3 (x = 6, y = 7)
SAM3S Preliminary
PWM Channel
Block Diagram
Selector
Clock
2-bit gray
counter z
Each of the 4 channels is composed of six blocks:
• A clock selector which selects one of the clocks provided by the clock generator (described in
• A counter clocked by the output of the clock selector. This counter is incremented or
• A comparator used to compute the OCx output waveform according to the counter value and
• A 2-bit configurable gray counter enables the stepper motor driver. One gray counter drives 2
• A dead-time generator providing two complementary outputs (DTOHx/DTOLx) which allows
• An output override block that can force the two complementary outputs to a programmed
• An asynchronous fault protection mechanism that has the highest priority to override the two
Section 36.6.1 on page
decremented according to the channel configuration and comparators matches. The size of
the counter is 16 bits.
the configuration. The counter value can be the one of the channel counter or the one of the
channel 0 counter according to SYNCx bit in the
page 888
channels.
to drive external power control switches safely.
value (OOOHx/OOOLx).
complementary outputs in case of fault detection (PWMHx/PWMLx).
Duty-Cycle
Channel x
Channel 0
Counter
Update
Counter
Period
(PWM_SCM).
MUX
Comparator
Comparator
SYNCx
848).
x
y
OCx
OCy
Dead-Time
Dead-Time
Generator
Generator
“PWM Sync Channels Mode Register” on
Channel y (= x+1)
DTOHx
DTOLx
DTOHy
DTOLy
Channel x
Override
Override
Output
Output
OOOHx
OOOLx
OOOHy
OOOLy
Protection
Protection
6500C–ATARM–8-Feb-11
Fault
Fault
PWMHx
PWMLx
PWMHy
PWMLy