AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 128
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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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20.3
20.3.1
Table 20-18. Signal Description List
128
Signal Name
VDDFLASH
VDDIO
VDDCORE
VDDPLL
GND
XIN
Serial Fast Flash Programming
AT91SAM7X512/256/128 Preliminary
Device Configuration
Function
Flash Power Supply
I/O Lines Power Supply
Core Power Supply
PLL Power Supply
Ground
Main Clock Input.
This input can be tied to GND. In this
case, the device is clocked by the internal
RC oscillator.
The Serial Fast Flash programming interface is based on IEEE Std. 1149.1 “Standard Test
Access Port and Boundary-Scan Architecture”. Refer to this standard for an explanation of terms
used in this chapter and for a description of the TAP controller states.
In this mode, data read/written from/to the embedded Flash of the device are transmitted
through the JTAG interface of the device.
In Serial Fast Flash Programming Mode, the device is in a specific test mode.Only a certain set
of pins is significant, the rest of the PIOs are used as inputs with a pull-up. The crystal oscillator
is in bypass mode. Other pins must be left unconnected.
Figure 20-4. Serial Programing
0-50MHz
VDDIO
VDDIO
VDDIO
TDO
TMS
TCK
TDI
Clocks
Power
TST
PGMEN0
PGMEN1
XIN
Ground
Power
Power
Power
Power
Type
Input
Active
Level
Comments
32 kHz to 50 MHz
VDDCORE
VDDIO
VDDPLL
VDDFLASH
GND
6120H–ATARM–17-Feb-09
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