M55800A Atmel Corporation, M55800A Datasheet - Page 26

• 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

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EBI Pin Description
AT91M5880A
The following table shows how certain EBI signals are multiplexed:
Name
A0 - A23
D0 - D15
NCS0 - NCS7
NRD
NWR0 - NWR1
NOE
NWE
NUB, NLB
NWAIT
Multiplexed Signals
A0
NRD
NWR0
NWR1
NLB
NOE
NWE
NUB
Functions
8- or 16-bit data bus
Byte-write or byte-select access
Byte-write or byte-select access
Byte-write or byte-select access
Wait request (input)
Description
Address bus (output)
Data bus (input/output)
Active low chip selects (output)
Read Enable (output)
Lower and upper write enable (output)
Output enable (output)
Write enable (output)
Upper and lower byte-select (output)
1745F–ATARM–06-Sep-07
Output
Output
Output
Output
Output
Output
Output
Type
Input
I/O