Fujitsu FR81S User Manual
CHAPTER 40: MULTI-FUNCTION SERIAL INTERFACE
5. Operation of UART
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : MULTI-FUNCTION SERIAL INTERFACE
FUJITSU SEMICONDUCTOR CONFIDENTIAL
147
5.1.6.
Timing of Timer Interrupt Generation and Flag
Setting
Setting
Timer interrupt is generated when Serial Timer Register (STMR) matched Serial Timer Comparison
Register (STMCR).
⋅
When Serial Timer Register (STMR) matched Serial Timer Comparison Register (STMCR), "1" will be
set to timer interrupt flag (SACSR:TINT).
At this time when the timer interrupt is enabled (SACSR:TINTE="1"), a status interrupt will be
generated.
Figure 5-5 Timer Interrupt Generation Timing
10
0
1
2
・・・
9
10
1
0
STMR
STMCR
TINT
Timer activation
Generation of
status interrupt
status interrupt
MB91520 Series
MN705-00010-1v0-E
1460