Renesas M16C/60 Series Hardware Manual page 162

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M16C/6N5 Group
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(f) CTS/RTS Separate Function (UART0)
This function separates CTS
from the P6 pin. To use this function, set the register bits as shown below.
4
• U0C0 register's CRD bit = 0 (enables UART0 CTS/RTS)
• U0C0 register's CRS bit = 1 (outputs UART0 RTS)
• U1C0 register's CRD bit = 0 (enables UART1 CTS/RTS)
• U1C0 register's CRS bit = 0 (inputs UART1 CTS)
• UCON register's RCSP bit = 1 (inputs CTS
• UCON register's CLKMD1 bit = 0 (CLKS
Note that when using the CTS/RTS separate function, UART1 CTS/RTS separate function cannot be
used.
Figure 1.15.14 shows CTS/RTS separate function usage.
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Figure 1.15.14 CTS/RTS Separate Function
Rev.1.00 2003.05.30 page 148
_______ _______ _______
/RTS , outputs RTS
0 0
_______
_______
_______
from the P6
0
not used)
1
_______ _______
_______ _______
Microcomputer
T D (P6 )
X 0 3
R D (P6 )
X 0 2
CLK (P6 )
0 1
RTS (P6 )
0 0
CTS (P6 )
0 4
Serial I/O (Clock Synchronous Serial I/O Mode)
from the P6 pin, and accepts as input the CTS
0 0
_______ _______
_______ _______
pin)
4
_______ _______
IC
IN
OUT
CLK
CTS
RTS
_______
0