7188XA/B/C & 7521/2/2A/3/4/7 Series Hardware User’ s Manual, Ver. 2.0 Sep/2002, 7Mh-001-20 -----
70
2.7 Using Red LED & 7-SEG LED Display
The red LED of the 7188X/7521 series can be turned-ON or turned-OFF
by its software program. The 5 digits of the seven-segment LED are also
programmable.
The 5-digit LED is very useful in real world applications.
It
can be used to replace the monitor & touch-screen for many applications.
2.8 Using RTC & NVSRAM
The RTC & NVSRAM are located on the same chip. There is a Li-battery
to backup the RTC & NVSRAM for 10 years. The features of the RTC are
given as follows:
•
MiniOS7 supports RTC time & date
•
Seconds, minutes, hours, date of the month
•
Month, day of week, year, Leap year valid up to 2079
l
NVSRAM: 31 bytes, data valid for 10 years
Note1: only 7188XA & 7188XB support RTC & NVRAM.
Note2: the 7188XC & 7521 series can add a RTC/NVRAM for the
OEM/ODM user.
ГК
Атлант
Инжиниринг
–
официальный
представитель
в
РФ
и
СНГ
+7(495)109-02-08 [email protected] www.bbrc.ru