AT91R40807-33AI Atmel, AT91R40807-33AI Datasheet - Page 108

• Manufacturer Part Number: AT91R40807-33AI
• Description: IC ARM7 MCU 176 TQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91R40807-33AI

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 136K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

USART Control Register
Name:
Access Type:Write Only
Offset:
• RSTRX: Reset Receiver (Code Label US_RSTRX)
0 = No effect.
1 = The receiver logic is reset.
• RSTTX: Reset Transmitter (Code Label US_RSTTX)
0 = No effect.
1 = The transmitter logic is reset.
• RXEN: Receiver Enable (Code Label US_RXEN)
0 = No effect.
1 = The receiver is enabled if RXDIS is 0.
• RXDIS: Receiver Disable (Code Label US_RXDIS)
0 = No effect.
1 = The receiver is disabled.
• TXEN: Transmitter Enable (Code Label US_TXEN)
0 = No effect.
1 = The transmitter is enabled if TXDIS is 0.
• TXDIS: Transmitter Disable (Code Label US_TXDIS)
0 = No effect.
1 = The transmitter is disabled.
• RSTSTA: Reset Status Bits (Code Label US_RSTSTA)
0 = No effect.
1 = Resets the status bits PARE, FRAME, OVRE and RXBRK in the US_CSR.
• STTBRK: Start Break (Code Label US_STTBRK)
0 = No effect.
1 = If break is not being transmitted, start transmission of a break after the characters present in US_THR and the Transmit
Shift Register have been transmitted.
• STPBRK: Stop Break (Code Label US_STPBRK)
0 = No effect.
1 = If a break is being transmitted, stop transmission of the break after a minimum of one character length and transmit a
high level during 12 bit periods.
108
TXDIS
31
23
15
–
–
–
7
AT91X40 Series
US_CR
0x00
TXEN
30
22
14
–
–
–
6
RXDIS
29
21
13
–
–
–
5
SENDA
RXEN
28
20
12
–
–
4
STTTO
RSTTX
27
19
11
–
–
3
STPBRK
RSTRX
26
18
10
–
–
2
STTBRK
25
17
–
–
9
1
–
1354D–ATARM–08/02
RSTSTA
24
16
–
–
–
8
0