ATSAM3S4AA-MU Atmel, ATSAM3S4AA-MU Datasheet - Page 733

• 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

33.8.9
Name:
Addresses:
Access:
This register can only be written if the WPEN bit is cleared in
• CD: Clock Divider
• FP: Fractional Part
0: Fractional divider is disabled.
1 - 7: Baudrate resolution, defined by FP x 1/8.
6500C–ATARM–8-Feb-11
6500C–ATARM–8-Feb-11
31
23
15
1 to 65535
–
–
7
CD
USART Baud Rate Generator Register
0
30
22
14
US_BRGR
0x40024020 (0), 0x40028020 (1)
Read-write
–
–
6
Baud Rate =
Selected Clock/(16*CD)
OVER = 0
29
21
13
–
–
5
SYNC = 0
USART_MODE
Baud Rate =
Selected Clock/(8*CD)
28
20
12
–
–
4
OVER = 1
CD
CD
Baud Rate Clock Disabled
“USART Write Protect Mode Register” on page
≠
ISO7816
27
19
11
–
–
3
Baud Rate =
Selected Clock /CD
USART_MODE = SPI
(Master or Slave)
SYNC = 1
or
26
18
10
–
2
SAM3S Preliminary
SAM3S Preliminary
Baud Rate = Selected
Clock/(FI_DI_RATIO*CD)
FP
25
17
–
9
1
USART_MODE =
ISO7816
741.
24
16
–
8
0
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