Master/Slave Communication Function (Multiprocessor Mode) - Fujitsu F2MC-16LX Hardware Manual

21.3.4 Master/Slave Communication Function (Multiprocessor
Mode)
The UART enables communication in a master/slave connection in which more than
one slave CPU is connected. Operation Mode 1 is used in this case. The UART itself
can be used only as the master system.
I Register settings in master/slave communication
Set the registers as shown in Figure 21.3-9 "Register settings in master/slave communication"
before starting master-slave communication.
Figure 21.3-9 Register settings in master/slave communication
15
Bit
SCR/SMR PEN P
0
Mode 1
SSR,
PE ORE FRE TDRF
SIDR/SODR
Mode 1
*1
DDR7
*1 : When UART0 is used, set the bits 1 and 2 of DDR7.
1 : Set to "1"
0 : Set to "0"
14 13 12 11 10
SBL CL AD REC RXE TXE MD1 MD0 CS2 CS1 CS0 BCH SCKE SOE
1 0
- RIE TIE Set conversion data (during write)/store reception data (during read)
-
: Bit used
: Bit not used
: Set "0" when pin input is used
9 8 7 6 5
0 1
P77 P76 P75 P74 P73 P72 P71 P70
CHAPTER 21 UART
4 3 2 1 0
0
417