AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 107
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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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AT91SAM7X512/256/128 Preliminary
To run one of these commands, the field FCMD of the MC_FCR register has to be written with
the command number. As soon as the MC_FCR register is written, the FRDY flag is automati-
cally cleared. Once the current command is achieved, then the FRDY flag is automatically set. If
an interrupt has been enabled by setting the bit FRDY in MC_FMR, the interrupt line of the Mem-
ory Controller is activated.
All the commands are protected by the same keyword, which has to be written in the eight high-
est bits of the MC_FCR register.
Writing MC_FCR with data that does not contain the correct key and/or with an invalid command
has no effect on the memory plane; however, the PROGE flag is set in the MC_FSR register.
This flag is automatically cleared by a read access to the MC_FSR register.
When the current command writes or erases a page in a locked region, the command has no
effect on the whole memory plane; however, the LOCKE flag is set in the MC_FSR register. This
flag is automatically cleared by a read access to the MC_FSR register.
107
6120H–ATARM–17-Feb-09
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