ATSAM3S4CA-CU Atmel, ATSAM3S4CA-CU Datasheet - Page 192
![IC MCU 32BIT 256KB FLASH 100BGA](/photos/12/32/123223/100-lfbga_sml.jpg)
ATSAM3S4CA-CU
Manufacturer Part Number
ATSAM3S4CA-CU
Description
IC MCU 32BIT 256KB FLASH 100BGA
Manufacturer
Atmel
Series
SAM3Sr
Specifications of ATSAM3S4CA-CU
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
64MHz
Connectivity
EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
79
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
1.62 V ~ 1.95 V
Data Converters
A/D 16x10/12b, D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-LFBGA
Processor Series
ATSAM3x
Core
ARM Cortex M3
3rd Party Development Tools
JTRACE-CM3, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
ATSAM3S-EK
Package
100LFBGA
Device Core
ARM Cortex M3
Family Name
AT91
Maximum Speed
64 MHz
Operating Supply Voltage
1.8|3.3 V
Data Bus Width
32 Bit
Number Of Programmable I/os
79
Interface Type
I2C/I2S/SPI/UART/USART/USB
On-chip Adc
16-chx12-bit
On-chip Dac
2-chx12-bit
Number Of Timers
6
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATSAM3S4CA-CU
Manufacturer:
SANYO
Quantity:
1 000
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10.22.1
• COUNTFLAG
Returns 1 if timer counted to 0 since last time this was read.
• CLKSOURCE
Indicates the clock source:
0 = MCK/8
1 = MCK
• TICKINT
Enables SysTick exception request:
0 = counting down to zero does not assert the SysTick exception request
1 = counting down to zero to asserts the SysTick exception request.
Software can use COUNTFLAG to determine if SysTick has ever counted to zero.
• ENABLE
Enables the counter:
0 = counter disabled
1 = counter enabled.
When ENABLE is set to 1, the counter loads the RELOAD value from the LOAD register and then counts down. On reach-
ing 0, it sets the COUNTFLAG to 1 and optionally asserts the SysTick depending on the value of TICKINT. It then loads the
RELOAD value again, and begins counting.
192
31
23
15
7
SAM3S Preliminary
SysTick Control and Status Register
30
22
14
6
The SysTick CTRL register enables the SysTick features. See the register summary in
33 on page 191
Reserved
29
21
13
5
for its attributes. The bit assignments are:
Reserved
28
20
12
4
Reserved
Reserved
27
19
11
3
CLKSOURCE
26
18
10
2
TICKINT
25
17
9
1
6500C–ATARM–8-Feb-11
COUNTFLAG
ENABLE
Table 10-
24
16
8
0
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