Atmel AT91SAM7SE-EK, User Manual

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Configuration
4-2 AT91SAM7SE-EK Evaluation Board User Guide
6241B–ATARM–22-Mar-07
4.3 JTAG/ICE
4.4 Microcontroller
Clock
4.5 Memory
4.6 Ethernet
NOT POPULATED
Table 4-3. JTAG/ICE Configuration
Designation
Default
Setting
Feature
S1 Opened Selects ICE mode or JTAG mode (Closed)
R11 Soldered Enables the ICE NRST input
Table 4-4. Microcontroller Clock Configuration
Designation
Default
Setting
Feature
R13/R15 Soldered
Enables the use of 18.432MHz crystal. If external clock
used, R13/R15 must be unsoldered and S3 closed.
S3 Opened
Table 4-5. Memory Configuration
Designation
Default
Setting
Feature
SDRAM
R18 Soldered Enables MN4 Chip select access
NAND FLASH (MN6x)
R22
R20
S5
Soldered
Soldered
Opened
Enables the use of NANDFlash (MN6x)
Enables the use of Ready Busy signal
Disables write protect
SERIAL DATAFLASH (MN5) (NOT POPULATED)
R26
S4
Soldered
Opened
Enables the use of the Serial DataFlash
Disables the write protect.
TWI SERIAL EEPROM (MN10) (NOT POPULATED)
R30
R31
Soldered
Soldered
Enables SCL access
Enables SDA access
Table 4-6. Ethernet Configuration
Designation
Default
Setting
Feature
R37 Soldered Enables the use of the Ethernet controller DM9000A
R11 Soldered Enables the use of the IRQ Ethernet controller