AT91SAM7SE256B-AUR Atmel, AT91SAM7SE256B-AUR Datasheet - Page 432

• Manufacturer Part Number: AT91SAM7SE256B-AUR
• Description: IC ARM7 MCU FLASH 256K 128-LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7SE256B-AUR

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: EBI/EMI, I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 88
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Processor Series: SAM7SE256
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: SPI, USB
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 88
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 85 C
• Processor To Be Evaluated: AT91SAM7SE256B
• Supply Current (max): 60 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

33.7.9
Name:
Access:
• CD: Clock Divider
• FP: Fractional Part
0: Fractional divider is disabled.
1 - 7: Baudrate resolution, defined by FP x 1/8.
432
1 to 65535
31
23
15
–
–
7
CD
0
SAM7SE512/256/32 Preliminary
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
FP
25
17
–
9
1
Baud Rate = Selected
Clock/CD/FI_DI_RATIO
USART_MODE =
6222F–ATARM–14-Jan-11
ISO7816
24
16
–
8
0