Renesas M16C Series User Manual

Clock-Asynchronous Serial I/O
M30240 Group
Rev.1.00 Sep 24, 2003 Page 216 of 360
Figure 2.66: Set-up procedure of reception in UART mode (1)
Continued to the next page
UART transmit/receive control register 2
UCON [Address 03B0
16]
Invalid in UART mode
Must be fixed to “0” in UART mode
Invalid in UART mode
Invalid in UART mode
Reserved
Mustt always be "0"
b7 b0
00
Setting UART transmit/receive control register 2 and UART2 transmit/receive control register 1
UART2 transmit/receive control register 1
U2C1 [Address 037D
16]
Invalid in UART mode
Error signal output enable bit
0 : Output disabled
Data logic select bit
0 : No reverse
b7 b0
00
Setting UARTi transmit/receive mode register (i=0 to 2)
Internal/external clock select bit
1 : External clock
UART0 transmit/receive mode register
U0MR
[Address 03A016]
UART1 transmit/receive mode register
U1MR
[Address 03A816]
Valid when bit 6 = “1”
Parity enable bit
0 : Parity diabled
b7 b0
01011
Sleep select bit
0 : Sleep mode deselected
Serial I/O mode select bit
1 0 1 : Transfer data 8 bits long
b2 b1 b0
00
Stop bit length select bit
0 : One stop bit
Parity enable bit
0 : Parity diabled
b7 b0
01010
Serial I/O mode select bit
1 0 1 : Transfer data 8 bits long
b2 b1 b0
00
Stop bit length select bit
0 : One stop bit
UART2 transmit/receive mode register
U2MR
[Address 037816]
Valid when bit 6 = “1”
Setting UARTi transmit/receive control register 0 (i=0 to 2)
UART2 transmit/receive control register 0
U2C0 [Address
037C16]
Transfer format select bit
0 : LSB first
Must be fixed to “0” in UART mode
Transmit register empty flag
0 : Data present in transmit register
(during transmission)
1 : No data present in transmit register
(transmission completed)
Must be fixed to “0” in UART mode
b7 b0
0100
BRG count source select bit
0 0 : f
1 is selected
0 1 : f
8 is selected
1 0 : f
32 is selected
1 1 : Inhibited
b1 b0
CTS/RTS function select bit
(Valid when bit 4 = “0”)
1 : RTS function is selected
CTS/RTS disable bit
0 : CTS/RTS function enabled
UART0 transmit/receive control register 0
U0C0 [Address 03A4
16]
UART1 transmit/receive control register 0
U1C0 [Address 03AC
16]
b7 b0
0100
BRG count source select bit
0 0 : f
1 is selected
0 1 : f
8 is selected
1 0 : f
32 is selected
1 1 : Inhibited
b1 b0
CTS/RTS function select bit
(Valid when bit 4 = “0”)
1 : RTS function is selected
CTS/RTS disable bit
0 : CTS/RTS function enabled
Transmit register empty flag
0 : Data present in transmit register
(during transmission)
1 : No data present in transmit register
(transmission completed)
TxD, RxD I/O Polarity reverse bit
Usually set to "0"
Must be fixed to "0" in UART mode
Must be fixed to "0" in UART mode

Renesas M16C Series Specifications

General

Brand	Renesas
Model	M16C Series
Category	Computer Hardware
Language	English