SAM7X256 Atmel Corporation, SAM7X256 Datasheet - Page 294

• 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

29.6
Table 29-3.
294
0x0038 - 0x00FC
0x000C
0x002C
0x0000
0x0004
0x0008
0x0010
0x0020
0x0024
0x0028
0x0030
0x0034
Offset
TWI User Interface
SAM7X512/256/128
Register Mapping
Register
Control Register
Master Mode Register
Reserved
Internal Address Register
Clock Waveform Generator Register
Status Register
Interrupt Enable Register
Interrupt Disable Register
Interrupt Mask Register
Receive Holding Register
Transmit Holding Register
Reserved
TWI_CWGR
TWI_MMR
TWI_IADR
TWI_RHR
TWI_THR
TWI_IMR
TWI_IER
TWI_IDR
TWI_CR
TWI_SR
Name
–
-
Read-write
Read-write
Read-write
Read-write
Write-only
Read-only
Write-only
Write-only
Read-only
Read-only
Access
–
-
6120I–ATARM–06-Apr-11
0x0000
0x0000
0x0000
0x0008
0x0000
0x0000
0x0000
Reset
N/A
N/A
N/A
–
-