PAS5101PE Specification

All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission

.

7

PixArt Imaging Inc.

v1.0 2005/4/27

Figure 3.2 Companding curves program by Compand_EnH and Compand_Sel

3.4. Power Down Mode

The PAS5101PE can be power down by setting register “SW_PwrDn” or by enable PWDN pin.

PAS5101PE supports two power down modes :

Software Power Down : Set register “SW_PwrDn” = 0x01 to power down all the internal

Hardware Power Down : Pull PWDN pin to high to power down the chip. The chip will go

into standby mode.

3.5. Reset Mode

The PAS5101PE can be reset by setting “SW_Reset” or by enable Reset pin. PAS5101PE supports two

reset modes :

reset the register value not reset full chip.

HardwareReset : Pull Reset pin to high to reset the full chip.

3.6. Window-of-Interest ( WOI )

Users are allowed to define window size as well as window location in PAS5101PE. The location of

window can be anywhere in the pixel array. Window size and window location is defined by register

“H_Start”, “V_Start”, “V_Size” and “H_Size”; The “H_Start” defines the starting column while

“V_Start” defines the starting rom of the window; The “H_Size” define the column width of the window

and “V_Size” defines the row depth of the window.