AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 488
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AT91SAM7X128
Manufacturer Part Number
AT91SAM7X128
Description
MCU 32-Bit 91S ARM7TDMI RISC 128KB Flash 1.8V/3.3V 100-Pin LQFP
Manufacturer
Atmel
Datasheet
1.AT91SAM7X512-AU-999.pdf
(687 pages)
Specifications of AT91SAM7X128
Package
100LQFP
Device Core
ARM7TDMI
Family Name
91S
Maximum Speed
55 MHz
Ram Size
32 KB
Program Memory Size
128 KB
Operating Supply Voltage
1.8|3.3 V
Data Bus Width
32 Bit
Program Memory Type
Flash
Number Of Programmable I/os
62
Interface Type
CAN/Ethernet/SPI/I2S/TWI/USART/USB
On-chip Adc
8-chx10-bit
Operating Temperature
-40 to 85 °C
Number Of Timers
3
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35.5.4
Figure 35-2. EOCx and DRDY Flag Behavior
488
(ADC_CHSR)
(ADC_SR)
(ADC_SR)
EOCx
DRDY
CHx
AT91SAM7X512/256/128 Preliminary
Conversion Results
Write the ADC_CR
with START = 1
When a conversion is completed, the resulting 10-bit digital value is stored in the Channel Data
Register (ADC_CDR) of the current channel and in the ADC Last Converted Data Register
(ADC_LCDR).
The channel EOC bit in the Status Register (ADC_SR) is set and the DRDY is set. In the case of
a connected PDC channel, DRDY rising triggers a data transfer request. In any case, either
EOC and DRDY can trigger an interrupt.
Reading one of the ADC_CDR registers clears the corresponding EOC bit. Reading ADC_LCDR
clears the DRDY bit and the EOC bit corresponding to the last converted channel.
Conversion Time
Read the ADC_CDRx
Write the ADC_CR
with START = 1
Conversion Time
Read the ADC_LCDR
6120H–ATARM–17-Feb-09
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