iPod IWIP3G User Guide - Page 127
Set Control Vregen
UPC - 649241862819
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6.24 SET CONTROL VREGEN SET CONTROL VREGEN is used to set the behavior of the internal software-controlled regulator on the module. The PIO's specified by the PIO mask parameter will be pulled high by the regulator as specified by the mode parameter. 6.24.1 Syntax Synopsis: SET CONTROL VREGEN {mode} {PIO mask} Description: mode PIO mask 0 Regulator is enabled on rising edge when its input voltage (VREG_ENA) rises past around 1V and will hold the PIO's high. Warning: using this mode may or may not, depending on your setup, keep the module powered on until its power source is disconnected or regulator mode is switched! 1 Regulator is enabled on rising edge (of VREG_ENA) and holds the PIO voltage up until a falling edge is encountered, at which point the regulator will pull the voltage down. 2 Regulator is enabled on rising edge and holds the voltage up until another rising edge followed by a falling edge is encountered, at which point the regulator will bring the voltage down. Bit mask used to specify which PIO's are held up by the regulator. This parameter is given in hexadecimal format. Response: SYNTAX ERROR This event occurs if incorrect parameters are given. 127