AT91SAM7S32B-AU Atmel, AT91SAM7S32B-AU Datasheet - Page 388

• Manufacturer Part Number: AT91SAM7S32B-AU
• Description: IC MCU ARM7 32KB FLASH 48LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S32B-AU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: I²C, SPI, SSC, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: 48-LQFP
• Cpu Family: 91S
• Device Core: ARM7TDMI
• Device Core Size: 32b
• Frequency (max): 55MHz
• Interface Type: SPI/TWI/USART
• Total Internal Ram Size: 8KB
• # I/os (max): 21
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 1.8/3.3V
• Operating Supply Voltage (max): 1.95/3.6V
• Operating Supply Voltage (min): 1.65/3V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 48
• Package Type: LQFP
• Package: 48LQFP
• Family Name: AT91
• Maximum Speed: 55 MHz
• Operating Supply Voltage: 1.8|3.3 V
• Data Bus Width: 32 Bit
• Number Of Programmable I/os: 21
• Number Of Timers: 3
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

31.7.2
Name:
Access Type:
• USART_MODE
• USCLKS: Clock Selection
• CHRL: Character Length.
388
31
23
15
–
–
7
0
0
1
1
0
0
0
0
0
0
0
0
1
1
0
0
1
1
AT91SAM7S Series Preliminary
USART Mode Register
CHMODE
CHRL
USCLKS
CHRL
30
22
14
US_MR
Read-write
–
–
6
0
1
0
1
0
0
0
0
1
1
1
1
0
1
0
1
0
1
USART_MODE
DSNACK
Character Length
5 bits
6 bits
7 bits
8 bits
29
21
13
–
5
Selected Clock
MCK
MCK/DIV (DIV = 8)
Reserved
SCK
NBSTOP
USCLKS
0
0
1
1
0
0
1
1
0
x
FILTER
INACK
28
20
12
4
0
1
0
1
0
1
0
1
0
x
OVER
27
19
11
–
3
Mode of the USART
Normal
RS485
Hardware Handshaking
Modem (Reserved on AT91SAM7S32/16)
IS07816 Protocol: T = 0
Reserved
IS07816 Protocol: T = 1
Reserved
IrDA
Reserved
CLKO
PAR
26
18
10
2
USART_MODE
MAX_ITERATION
MODE9
25
17
9
1
6175K–ATARM–30-Aug-10
MSBF
SYNC
24
16
8
0