Artesyn MVME8100/MVME8110 Installation and Use (September 2014) - Manual (Page 86)

Functional Description
MVME8100 / MVME8110 Installation and Use (6806800P25G) 86
The CPLD provides the following functions:
 Power control and fault detection
 Reset sequence and reset management
 Status and Control registers
 Miscellaneous control logics
 Watchdog timer
 32-bit Tick Timers
 Clock generator
 Switch decoder and LED controller
4.20 Power Management
The 5 volt coming from the back plane is utilized to derive all on-board voltage rails. To provide the required
voltage sequencing, each voltage rail is controlled by the CPLD through enable pin of each regulator and the
output is being monitored by CPLD through each regulator power good signal. If one voltage rail fails, the
CPLD will disable all of the regulators and the only way to restart the board is by power cycling the chassis 5
volt power.