S-7750C Datasheet, PDF (18/44 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-7750C
Rev.1.1_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 20 Flowchart of S-7750C’s Action
18
Seiko Instruments Inc.