R01UH0092EJ0110 Rev.1.10
Page 465 of 807
Jul 31, 2012
M16C/64C Group
23. Serial Interface UARTi (i = 0 to 2, 5 to 7)
23.2.8
UART Transmit/Receive Control Register 2 (UCON)
Bits UiIRS and UiRRM of UART2 and UART5 to UART7 are bits in the UiC1 register.
CLKMD1 (UART1CLK, CLKS select bit 1) (b5)
When using multiple transmit/receive clock output pins, make sure that the CKDIR bit in the U1MR
register is 0 (internal clock).
Symbol
UCON
Address
0250h
After Reset
X000 0000b
Function
Bit symbol
Bit Name
RW
U0RRM
U1IRS
U0IRS
0 : Continuous receive mode disabled
1 : Continuous receive mode enabled
UART1 continuous receive
mode enable bit
UART0 transmit interrupt
source select bit
U1RRM
UART Transmit/Receive Control Register 2
RW
RW
RW
RW
UART0 continuous receive
mode enable bit
0 : Continuous receive mode disabled
1 : Continuous receive mode enabled
0 : Transmit buffer empty (Tl = 1)
1 : Transmission completed (TXEPT = 1)
UART1 transmit interrupt
source select bit
0 : Transmit buffer empty (Tl = 1)
1 : Transmission completed (TXEPT = 1)
—
(b7)
No register bit. If necessary, set to 0. Read as undefined value
—
CLKMD0
Enabled when CLKMD1 is 1
0 : Clock output from CLK1
1 : Clock output from CLKS1
UART1CLK, CLKS select bit 0
RW
b7 b6 b5 b4
b1
b2
b3
b0
CLKMD1
0 : CLK output is only from CLK1
1 : Transmit/receive clock output from
multiple-pin output function selected
UART1CLK, CLKS select bit 1
RW
RCSP
Separate UART0
CTS/RTS bit
0 : CTS/RTS shared pin
1 : CTS/RTS separated
RW
Содержание M16C Series
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