M306H7MG-XXXFP Datasheet, PDF (115/329 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER

M306H7MG-XXXFP/MC-XXXFP/FGFP
10. SERIAL I/O
10.3.4 CTS/RTS Separate Function (UART0)
This function separates CTS0/RTS0, outputs RTS0 from the P60 pin, and accepts as input the CTS0 from the P64
pin. To use this function, set the register bits as shown below.
• 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 CTS0 from the P64 pin)
• UCON register's CLKMD1 bit = 0 (CLKS1 not used)
Note that when using the CTS/RTS separate function, UART1 CTS/RTS function cannot be used.
Microcomputer
TXD0 (P63)
RXD0 (P62)
RTS0 (P60)
CTS0 (P64)
IC
IN
OUT
CTS
RTS
Figure 10.20 CTS/RTS Separate Function
Rev.2.10 Oct 25, 2006 Page 115 of 326
REJ03B0152-0210