ST8012 datasheet(11/47 Pages) SITRONIX

11 / 47 page

ST8012

V1.6

11/47

2004/09/08

(common /segment mix mode)

ElO1, EIO2

Input/output pins for chip selection

AT common/segment mode:

When L/R input is at Vss level “L”, ElO1 is set output, and EIO2 is set for input.

ElO1 : segment chip enable output, as default segment is enabled internally and be non-selected

after 8,24,40,56,72 or 88 bits of data have been read. Depend on select mode.

ElO2 :common shift data input, no sift data output

When L/R input is at VDD level "H", ElO1 is set for input, and EIO2 is set for output.

ElO1 :common shift data, no shift data output

ElO2 : segment chip enable output, as default segment is enabled internally and be non-selected

after 8,24,40,56,72 or 88 bits of data have been read. Depend on select mode.

During output, set to "H" while LP • XCK is "H" and after 120 bits of data have been read, set

to "L” for one cycle (from falling edge to failing edge of XCK), after which it returns to "H".

During input, the chip is selected while El is set to "L" after the LP signal is input. The chip is

non-selected after 120 bits of data have been read.

ST8012 Datasheet(PDF) 11 Page - Sitronix Technology Co., Ltd.