M55800A Atmel Corporation, M55800A Datasheet - Page 14

• Manufacturer Part Number: M55800A
• Manufacturer: Atmel Corporation

Specifications of M55800A

• Flash (kbytes): 0 Kbytes
• Pin Count: 176
• Max. Operating Frequency: 33 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 58
• Ext Interrupts: 58
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Uart: 3
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 72
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• 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

User Peripherals
USART: Universal
Synchronous/
Asynchronous Receiver
Transmitter
TC: Timer Counter
14
AT91X40 Series
The AT91X40 Series provides two identical, full-duplex, universal synchronous/asyn-
chronous receiver/transmitters.
Each USART has its own baud rate generator, and two dedicated Peripheral Data Con-
troller channels. The data format includes a start bit, up to 8 data bits, an optional
programmable parity bit and up to 2 stop bits.
The USART also features a Receiver Timeout register, facilitating variable length Frame
support when it is working with the PDC, and a Time Guard register, used when interfac-
ing with slow remote equipment.
The AT91X40 Series features a Timer Counter block that includes three identical 16-bit
timer counter channels. Each channel can be independently programmed to perform a
wide range of functions, including frequency measurement, event counting, interval
measurement, pulse generation, delay timing and pulse-width modulation.
The Timer Counter can be used in Capture or Waveform Mode, and all three counter
channels can be started simultaneously and chained together.
1354D–ATARM–08/02