M55800A Atmel Corporation, M55800A Datasheet - Page 45

• 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

EBI User Interface
1354D–ATARM–08/02
The EBI is programmed using the registers listed in the table below. The Remap Control
Register (EBI_RCR) controls exit from Boot Mode (See “Boot on NCS0” on page 26.)
The Memory Control Register (EBI_MCR) is used to program the number of active chip
selects and data read protocol. Eight Chip Select Registers (EBI_CSR0 to EBI_CSR7)
are used to program the parameters for the individual external memories. Each
EBI_CSR must be programmed with a different base address, even for unused chip
selects.
Base Address: 0xFFE00000 (Code Label EBI_BASE)
Table 6. EBI Memory Map
Notes:
Offset
0x0C
0x1C
0x00
0x04
0x08
0x10
0x14
0x18
0x20
0x24
1. 8-bit boot (if BMS is detected high)
2. 16-bit boot (if BMS is detected low)
Register
Chip Select Register 0
Chip Select Register 1
Chip Select Register 2
Chip Select Register 3
Chip Select Register 4
Chip Select Register 5
Chip Select Register 6
Chip Select Register 7
Remap Control Register
Memory Control
Register
EBI_CSR0
EBI_CSR1
EBI_CSR2
EBI_CSR3
EBI_CSR4
EBI_CSR5
EBI_CSR6
EBI_CSR7
EBI_MCR
EBI_RCR
Name
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Write only
AT91X40 Series
Access
0x0000203D
0x0000203E
Reset State
0x10000000
0x20000000
0x30000000
0x40000000
0x50000000
0x60000000
0x70000000
–
0
(1)
(2)
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