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Artesyn MVME2500 ECC Installation and Use (August 2014) User Manual

Page 98

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Memory Maps and Registers

MVME2500-ECC Installation and Use (6806800N30F)

98

I2C_DEBUG_EN

I2C debug ports (I2C_1_D and I2C_1_C) enable
1 - Drive Enabled
0 - Drive Disabled

SERIAL_FLASH_WP

SPI devices write-protect register
1 - Write-protect enabled
0 - Write-protect disabled

I2C_1_D

I2C debug port-Data
I2C_DEBUG_EN=0
HiZ - Tri-Stated
I2C_DEBUG_EN-1
1 - Driven High
0 - Driven Low

I2C_1_C

I2C debug port-Clock
I2C_DEBUG_EN=0
HiZ - Tri-Stated
I2C_DEBUG_EN-1
1 - Driven High
0 - Driven Low

When SERIAL_FLASH_WP is set to "Low", this port will automatically read as low due to "AND"
connection between the two ports.