AT91M40400-25C ATMEL Corporation, AT91M40400-25C Datasheet - Page 30

• Manufacturer Part Number: AT91M40400-25C
• Description: 16/32-bit Microcontroller, 2.7V to 3.6V Operating Range
• Manufacturer: ATMEL Corporation

EBI User Interface
The EBI is programmed using the registers listed in the
table below. The Remap Control Register (EBI_RCR) con-
trols exit from Boot Mode (See “Boot” on page 13.) The
Memory Control Register (EBI_MCR) is used to program
the number of active chip selects and data read protocol.
Base Address: 0xFFE00000
Table 4. EBI Memory Map
Notes:
30
Offset
0x0C
0x1C
0x00
0x04
0x08
0x10
0x14
0x18
0x20
0x24
1.
2.
8-Bit boot (if BMS is detected high)
16-Bit boot (if BMS is detected low)
AT91M40400
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
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 dif-
ferent base address, even for unused chip selects.
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
Access
0x0000203D
0x0000203E
Reset State
0x10000000
0x20000000
0x30000000
0x40000000
0x50000000
0x60000000
0x70000000
–
0
(1)
(2)