Справочник Пользователя для IBM EM78P312N
EM78P312N
8-Bit Microcontroller
Product Specification
(V1.0) 10.03.2006
• 27
(This specification is subject to change without further notice)
MUX
Fosc/2
Fosc/2
Fosc/2
Fosc/2
Fosc/2
Fosc/2
Fosc/2
Fosc/2
23
21
16
14
13
12
11
9
TBKTC
TBTCK2:0
3
Falling Edge
Detector
TBT
Interrupt
TBTEN
Fig. 5-8 TBT Configuration
The Time Base Timer is used to generate the base time for key scan or dynamic
display processing. The interrupt is generated in the first falling edge of the source
clock after TBTEN is set to “1”.
display processing. The interrupt is generated in the first falling edge of the source
clock after TBTEN is set to “1”.
Source Clock
TBTEN
TBT Interrupt
Fig. 5-9 Time Base Timer Timing Chart