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AT91EB55 Datenblatt(PDF) 18 Page - ATMEL Corporation

Teilenummer AT91EB55
Bauteilbeschribung  AT91EB55 Evaluation Board
PDF  37 Pages
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Hersteller  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT91EB55 Datenblatt(HTML) 18 Page - ATMEL Corporation

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Appendix A – Configuration Straps
5-4
AT91EB55 Evaluation Board User Guide
Notes:
1. Hardwired default position: To cancel this default configuration, cut (or place) the wire
(a jumper) on the board.
5.2
Power
Consumption
Measurement
Straps (JP5, JP9)
The JP5 strap enables the user to connect an ammeter to measure the AT91M55800A
global consumption (V
DDCORE and VDDIO) when VDDCORE power supply is derived from
V
DDIO (JP8 in 3V3 position). The user can measure the core consumption by connecting
another ammeter between JP8 1 – 2 or 2 – 3 depending on the power supply used to
power the core.
The JP9 strap enables the user to connect an ammeter to measure the AT91M55800A
APMC and RTC modules battery backup consumption (V
DDBU).
5.3
Ground Links
(JP6)
The JP6 strap allows the user to connect the electrical and mechanical ground.
JP2
Push Button Enabling
Open
SW1-4 inputs to the AT91 are valid.
Closed
SW1-4 inputs to the AT91 are not valid. This authorizes users to connect the
corresponding PIO to their own resources via the I/O expansion connector.
JP3
RS-232 Driver Enabled
Open
The RS-232 transceivers are enabled.
Closed
The RS-232 transceivers are disabled. This authorizes users to connect the
corresponding PIO to their own resources via the I/O expansion connector.
JP7
Power Shut-down Feature
Open
The power supply shut-down feature is disabled.
Closed
The power supply shut-down feature is enabled. The user may shut-down the
board main power supply by using the APMC shut-down feature. The system
may be awakened by pushing the S1 Wake-Up push button or by programming
an alarm in the RTC module.
JP8
Core Power Supply Selection
2 – 3
The MCU core is powered by a 3.3V power supply.
1 – 2
Not supported on the current microcontroller revision.



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