Fujitsu FR81S Manual De Usuario
CHAPTER 40: MULTI-FUNCTION SERIAL INTERFACE
5. Operation of UART
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : MULTI-FUNCTION SERIAL INTERFACE
FUJITSU SEMICONDUCTOR CONFIDENTIAL
174
FIFO Used
(Transmission side)
Start
Operation mode setting
(setting to mode 0)
Sets N byte to transmission
FIFO
FIFO
RDRF=1
(Reception side)
data
transmission
transmission
Start
RDRF=1
Yes
Yes
No
No
Data Reply
・Enables transmission/
reception FIFO
・FBYTE setting
Reading and processing
for FBYTE setting value
for FBYTE setting value
Reading and processing for
FBYTE setting value
FBYTE setting value
Writes
“0” to FDRQ bit
Sets N byte to transmission
FIFO
FIFO
Writes
“0” to FDRQ bit
Operation mode setting
(setting to mode 0)
・Enables transmission/
reception FIFO
・FBYTE setting
MB91520 Series
MN705-00010-1v0-E
1487