SAM7X256 Atmel Corporation, SAM7X256 Datasheet - Page 120

• Manufacturer Part Number: SAM7X256
• Manufacturer: Atmel Corporation

Specifications of SAM7X256

• Flash (kbytes): 256 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 55 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 62
• Ext Interrupts: 62
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 3
• Can: 1
• Ssc: 1
• Ethernet: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 64
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.3
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

Table 20-1.
20.2.2
120
Signal Name
VDDFLASH
VDDIO
VDDCORE
VDDPLL
GND
XIN
TST
PGMEN0
PGMEN1
PGMNCMD
PGMRDY
PGMNOE
PGMNVALID
PGMM[3:0]
PGMD[15:0]
SAM7X512/256/128
Signal Names
Signal Description List
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.
Test Mode Select
Test Mode Select
Test Mode Select
Valid command available
0: Device is busy
1: Device is ready for a new command
Output Enable (active high)
0: DATA[15:0] is in input mode
1: DATA[15:0] is in output mode
Specifies DATA type (See
Bi-directional data bus
Depending on the MODE settings, DATA is latched in different internal registers.
Table 20-2.
When MODE is equal to CMDE, then a new command (strobed on DATA[15:0] signals) is stored
in the command register.
MODE[3:0]
0000
0001
0010
0101
Default
Mode Coding
Table 20-2
Symbol
CMDE
ADDR0
ADDR1
DATA
IDLE
Clocks
Power
)
Test
PIO
Input/Output
Ground
Output
Output
Power
Power
Power
Power
Type
Input
Input
Input
Input
Input
Input
Input
Data
Command Register
Address Register LSBs
Data Register
No register
Active
Level
High
High
High
High
Low
Low
Low
Comments
32KHz to 50MHz
Must be connected to VDDIO
Must be connected to VDDIO
Must be connected to VDDIO
Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
6120I–ATARM–06-Apr-11