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AT91EB42 Datenblatt(PDF) 16 Page - ATMEL Corporation

Teilenummer AT91EB42
Bauteilbeschribung  AT91EB42 Evaluation Board
PDF  30 Pages
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Hersteller  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT91EB42 Datenblatt(HTML) 16 Page - ATMEL Corporation

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Appendix A – Configuration Straps
5-2
AT91EB42 Evaluation Board User Guide
CB7
Standard Power Supply Supervisory Enabling
Closed
(1)
Standard power supply is supervised by the ADC (U20) channel 2 via a
resistor bridge. The ratio is set to 0.1485 so that the standard power supply
can be supervised up to 15V.
Open
Standard power supply is not connected to the ADC (U20) channel 2. This
authorizes users to connect the corresponding ADC channel to their own
resources via the I/O expansion connector.
CB6, CB8
ADC Channels 3 and 4 Enabling
Closed
(1)
ADC (U20) channels 3 and 4 are connected to ground.
Open
ADC (U20) channels 3 and 4 are not connected to ground. This authorizes
users to connect the corresponding ADC channel to their own resources via
the I/O expansion connector.
CB9
On-board Boot Chip Select
Closed
(1)
AT91 NCS0 select signal is connected to the Flash memory.
Open
AT91 NCS0 select signal is not connected to the Flash memory. This
authorizes users to connect the corresponding select signal to their own
resources via the EBI expansion connector.
CB10
Flash Reset
Closed
(1)
The on-board reset signal is connected to the Flash NRESET input.
Open
The on-board reset signal is not connected to the Flash NRESET input.
CB11
PB22 Ready/Busy MCM Memory Signal
Closed
(1)
AT91 PB22 signal is connected to the multi-chip device memory (U7),
Ready/Busy output pin
Open
AT91 PB22 signal is not connected to the multi-chip device memory (U7),
Ready/Busy output pin. This authorizes users to connect the corresponding
signal to their own resources via the I/O expansion connector
CB12
Boot Mode Strap Configuration
Open
BMS AT91 input pin is set for the microcontroller to boot on an external 16-bit
memory at reset.
Closed
(1)
BMS AT91 input pin is set for the microcontroller to boot on an external 8-bit
memory at reset.
CB13, CB14
I
2C EEPROM Enabling
Closed
(1)
EEPROM communication enabled
Open
EEPROM communication disabled. This authorizes users to connect the
corresponding PIO to their own resources via the I/O expansion connector.



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