AT91R40807-33AI Atmel, AT91R40807-33AI Datasheet - Page 45

• Manufacturer Part Number: AT91R40807-33AI
• Description: IC ARM7 MCU 176 TQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91R40807-33AI

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 136K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

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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