M42800A Atmel Corporation, M42800A Datasheet - Page 142

• Manufacturer Part Number: M42800A
• Manufacturer: Atmel Corporation

Specifications of M42800A

• Flash (kbytes): 0 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 33 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 54
• Ext Interrupts: 54
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 8
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.3/5.0
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

• TIMEOUT: Receiver Time-out (Code Label US_TIMEOUT)
0 = There has not been a time-out since the last “Start Time-out” command or the Time-out Register is 0.
1 = There has been a time-out since the last “Start Time-out” command.
• TXEMPTY: Transmitter Empty (Code Label US_TXEMPTY)
0 = There are characters in either US_THR or the Transmit Shift Register, or the transmitter is disabled.
1 = There are no characters in either US_THR or the Transmit Shift Register. TXEMPTY is 1 after Parity, Stop Bit and
Time-guard have been transmitted. TXEMPTY is 1 after stop bit has been sent, or after Time-guard has been sent if
US_TTGR is not 0.
Equal to zero when the USART is disabled or at reset. Transmitter Enable command (in US_CR) sets this bit to one, if the
transmitter is disabled.
• COMMTX: ARM7TDMI ICE Debug Communication Channel Transmit Status
For USART0 only. Refer to the ARM7TDMI Datasheet for a complete description of this flag.
• COMMRX: ARM7TDMI ICE Debug Communication Channel Receive Status
For USART0 only. Refer to the ARM7TDMI Datasheet for a complete description of this flag.
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1779D–ATARM–14-Apr-06