M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 136

• Manufacturer Part Number: M30622MA-XXXFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
• Manufacturer: RENESAS [Renesas Technology Corp]

Serial I/O
Figure 1.19.8. Serial I/O-related registers (5)
UART2 special mode register
b7 b6 b5 b4 b3 b2 b1 b0
UART transmit/receive control register 2
0
b7
b6
b5
b4
b3
b2
b1
b0
Note: Nothing but "0" may be written.
Note: When using multiple pins to output the transfer clock, the following requirements must be met:
ABSCS
CLKMD0
CLKMD1
Reserved bit
ACSE
U0RRM
U1RRM
symbol
SSS
Nothing is assigned.
In an attempt to write to this bit, write “0”. The value, if read, turns out to be indeterminate.
symbol
LSYN
U0IRS
U1IRS
IICM
ABC
BBS
RCSP
Bit
Bit
Symbol
U2SMR
Symbol
• UART1 internal/external clock select bit (bit 3 at address 03A8
UCON
IIC mode selection bit
Transmit start condition
select bit
Arbitration lost detecting
flag control bit
Bus busy flag
SCLL sync output
enable bit
Bus collision detect
sampling
clock select bit
Auto clear function
select bit of transmit
enable bit
UART0 transmit
interrupt cause select bit
UART1 transmit
interrupt cause select bit
Separate CTS/RTS bit
UART0 continuous
receive mode enable bit
UART1 continuous
receive mode enable bit
CLK/CLKS select bit 0
CLK/CLKS select
bit 1 (Note)
name
name
Bit
Bit
Address
Address
0377
03B0
16
16
0 : Normal mode
1 : IIC mode
0 : Update per bit
1 : Update per byte
0 : STOP condition detected
1 : START condition detected
(During clock synchronous
0 : Disabled
1 : Enabled
Must always be “0”
Must always be “0”
Must always be “0”
Always set to “0”
(During clock synchronous
0 :
1 : Transmission completed
0 :
1 : Transmission completed
0 : Continuous receive
1 : Continuous receive
0 : Continuous receive
1 : Continuous receive
Valid when bit 5 = “1”
0 : Clock output to CLK1
1 : Clock output to CLKS1
0 : Normal mode
1 : Transfer clock output
0 : CTS/RTS shared pin
1 : CTS/RTS separated
Transmit buffer empty (Tl = 1)
Transmit buffer empty (Tl = 1)
(CLK output is CLK1 only)
from multiple pins
function selected
(TXEPT = 1)
(TXEPT = 1)
mode disabled
mode enable
mode disabled
mode enabled
serial I/O mode)
serial I/O mode)
When reset
When reset
X0000000
Function
Function
00
16
2
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
0 : Ordinary
1 : Falling edge of RxD2
0 : Rising edge of transfer
1 : Underflow signal of timer A0
0 : No auto clear function
1 : Auto clear at occurrence of
Must always be “0”
Must always be “0”
Must always be “0”
Must always be “0”
Invalid
0 : CTS/RTS shared pin
1 : CTS/RTS separated
0 : Transmit buffer empty (Tl = 1)
1 : Transmission completed
0 : Transmit buffer empty (Tl = 1)
1 : Transmission completed
Must always be “0”
Invalid
Invalid
clock
bus collision
(TXEPT = 1)
(TXEPT = 1)
(During UART mode)
(During UART mode)
16
) = “0”.
Function
Function
Mitsubishi microcomputers
M16C / 62 Group
R
(Note)
R
W
W
121