ATSAM3S4AA-MU Atmel, ATSAM3S4AA-MU Datasheet - Page 880

• Manufacturer Part Number: ATSAM3S4AA-MU
• Description: IC MCU 32BIT 256KB FLASH 48QFN
• Manufacturer: Atmel
• Series: SAM3Sr

Specifications of ATSAM3S4AA-MU

• 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: 34
• 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 8x10/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-VQFN Exposed Pad, 48-HVQFN, 48-SQFN, 48-DHVQFN
• 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

36.7.1
Name:
Address:
Access:
This register can only be written if the bits WPSWS0 and WPHWS0 are cleared in
page
• DIVA, DIVB: CLKA, CLKB Divide Factor
• PREA, PREB: CLKA, CLKB Source Clock Selection
880
DIVA, DIVB
0
1
2-255
PREA, PREB
0
0
0
0
0
0
0
0
1
1
1
Other
911.
31
23
15
–
–
7
SAM3S Preliminary
PWM Clock Register
0
0
0
0
1
1
1
1
0
0
0
0
0
1
1
0
0
1
1
0
0
1
30
22
14
0x40020000
–
–
6
PWM_CLK
Read-write
0
1
0
1
0
1
0
1
0
1
0
29
21
13
–
–
5
CLKA, CLKB
CLKA, CLKB clock is turned off
CLKA, CLKB clock is clock selected by PREA, PREB
CLKA, CLKB clock is clock selected by PREA, PREB divided by DIVA, DIVB factor.
Divider Input Clock
MCK
MCK/2
MCK/4
MCK/8
MCK/16
MCK/32
MCK/64
MCK/128
MCK/256
MCK/512
MCK/1024
Reserved
28
20
12
–
–
4
DIVB
DIVA
27
19
11
3
“PWM Write Protect Status Register” on
26
18
10
2
PREB
PREA
25
17
9
1
6500C–ATARM–8-Feb-11
24
16
8
0