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Emerson MVME55006E manual Eeprom Write Protect Switch S3-3, Setting the PMC Vio Keying Pin

Models: MVME55006E

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EEPROM Write Protect Switch (S3-3)

Hardware Preparation and Installation

 

 

1.6.11EEPROM Write Protect Switch (S3-3)

This switch enables/disables programming of the on-board EEPROMs as a means of protecting the contents from being corrupted. Set to 1, it disables EEPROM programming by driving the WP pin to a logic high. Set to ON to program any of the EEPROMs at addresses A0, A6, A8, and/or AA.

Figure 1-13

S3-3 Settings

 

 

 

 

 

 

 

 

 

 

 

S3-3

 

 

 

 

1

 

 

 

 

 

ON

1

 

 

 

ON

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

2

 

 

 

 

3

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

4

 

 

 

 

Disables EEPROM

Enables EEPROM programming

programming

 

(factory configuration)

1.6.12Setting the PMC Vio Keying Pin

Signalling voltage (Vio) is determined by the location of the PMC Vio keying pin. Each site can be independently configured for either +5V or +3.3V signalling. The option selected can be determined by observing the location of the Vio keying pin.

Figure 1-14 VIO Keying Pin Settings

+5V key option on a PMC board

+3.3V key option on a PMC board

MVME55006E Single-Board Computer Installation and Use (6806800A37D)

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Emerson MVME55006E manual Eeprom Write Protect Switch S3-3, Setting the PMC Vio Keying Pin, S3-3 Settings
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