AT91SAM7S64-MU Atmel, AT91SAM7S64-MU Datasheet - Page 383
AT91SAM7S64-MU
Manufacturer Part Number
AT91SAM7S64-MU
Description
IC ARM7 MCU FLASH 64K 64QFN
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM7S64-MU
Core Processor
ARM7
Core Size
16/32-Bit
Speed
55MHz
Connectivity
I²C, SPI, SSC, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
16K 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
64-VQFN
For Use With
AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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31.6.8.2
31.6.8.3
31.6.8.4
6175K–ATARM–30-Aug-10
Automatic Echo Mode
Local Loopback Mode
Remote Loopback Mode
Figure 31-30. Normal Mode Configuration
Automatic echo mode allows bit-by-bit retransmission. When a bit is received on the RXD pin, it
is sent to the TXD pin, as shown in
the TXD pin. The RXD pin is still connected to the receiver input, thus the receiver remains
active.
Figure 31-31. Automatic Echo Mode Configuration
Local loopback mode connects the output of the transmitter directly to the input of the receiver,
as shown in
the receiver and the TXD pin is continuously driven high, as in idle state.
Figure 31-32. Local Loopback Mode Configuration
Remote loopback mode directly connects the RXD pin to the TXD pin, as shown in
The transmitter and the receiver are disabled and have no effect. This mode allows bit-by-bit
retransmission.
Figure
31-32. The TXD and RXD pins are not used. The RXD pin has no effect on
Transmitter
Transmitter
Transmitter
Receiver
Receiver
Receiver
AT91SAM7S Series Preliminary
Figure
31-31. Programming the transmitter has no effect on
1
RXD
TXD
RXD
TXD
RXD
TXD
Figure
31-33.
383
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