AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 402

• Manufacturer Part Number: AT91SAM7S256D-AU
• Description: ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
• Manufacturer: Atmel
• Series: SAM7S256r

Specifications of AT91SAM7S256D-AU

• Rohs: yes
• Core: ARM
• Processor Series: AT91SAM
• Data Bus Width: 16 bit/32 bit
• Maximum Clock Frequency: 55 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT
• Interface Type: 2-Wire, I2S, SPI, USART
• Length: 7 mm

31.7.9
Name:
Access Type:
• CD: Clock Divider
• FP: Fractional Part
0: Fractional divider is disabled.
1 - 7: Baudrate resolution, defined by FP x 1/8.
Note:
1 to 65535
31
23
15
–
–
7
Fractional Part is not supported by SAM7S32 and SAM7S64.
CD
0
USART Baud Rate Generator Register
Baud Rate =
Selected Clock/16/CD
30
22
14
US_BRGR
Read-write
–
–
6
OVER = 0
29
21
13
–
–
5
SYNC = 0
Baud Rate =
Selected Clock/8/CD
USART_MODE
28
20
12
OVER = 1
–
–
4
CD
CD
Baud Rate Clock Disabled
≠
ISO7816
27
19
11
–
–
3
Baud Rate =
Selected Clock /CD
SYNC = 1
26
18
10
–
2
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
FP
25
17
–
9
1
Baud Rate = Selected
Clock/CD/FI_DI_RATIO
USART_MODE =
ISO7816
24
16
–
8
0
402