AT91FR40162SB-CU-999 Atmel, AT91FR40162SB-CU-999 Datasheet - Page 128

• Manufacturer Part Number: AT91FR40162SB-CU-999
• Description: IC MCU 32BIT RISC 121BGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91FR40162SB-CU-999

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 75MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Size: 2MB (1M x 16)
• Program Memory Type: FLASH
• Ram Size: 256K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 121-BGA
• Data Bus Width: 32 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

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128
Channel Modes
AT91FR40162SB
The USART can be programmed to operate in three different test modes, using the field
CHMODE in US_MR.
Automatic Echo Mode allows bit by bit re-transmission. When a bit is received on the RXD line, it
is sent to the TXD line. Programming the transmitter has no effect.
Local Loopback Mode allows the transmitted characters to be received. TXD and RXD pins are
not used and the output of the transmitter is internally connected to the input of the receiver. The
RXD pin level has no effect and the TXD pin is held high, as in idle state.
Remote Loopback Mode directly connects the RXD pin to the TXD pin. The Transmitter and the
Receiver are disabled and have no effect. This mode allows bit by bit re-transmission.
Figure 18-7. Channel Modes
Remote Loopback
Automatic Echo
Local Loopback
Transmitter
Transmitter
Transmitter
Receiver
Receiver
Receiver
V
DD
Disabled
Disabled
Disabled
Disabled
Disabled
V
DD
RXD
TXD
RXD
TXD
TXD
RXD
6410B–ATARM–12-Jan-10