S-7760A Datasheet, PDF (20/53 Pages) Seiko Instruments Inc – PROGRAMMABLE PORT CONTROLLER (PORT EXPANDER WITH BUILT-IN E2PROM CIRCUIT)

PROGRAMMABLE PORT CONTROLLER (PORT EXPANDER WITH BUILT-IN E²PROM CIRCUIT)
S-7760A
Rev.1.3_00
„ Flowchart of Data Loading from E²PROM and Timer Action
Power-on
Loading each data from
E²PROM to register
DO pin outputs default value
No
TIMEN pin = “H”?
Yes
TIMEN pin
No
“L” → “H”?
Yes
No
Timer setting register is
in “1”?
Yes
Timer action starts
DO output inverts after
set time has elapsed
TIMEN pin
No
“H” → “L”?
Yes
No
Timer enable register
“0” → “1”?
Yes
Figure 21 Flowchart of S-7760A’s Action (When selecting “condition to start timer Option 1”)
20
Seiko Instruments Inc.