M30240ECFP MITSUBISHI [Mitsubishi Electric Semiconductor], M30240ECFP Datasheet - Page 88

• Manufacturer Part Number: M30240ECFP
• Description: M30240 Group Specification
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Specifications in this manual are tentative and subject to change
UART0 through UART2
Figure 1.79: Serial I/O-related registers (3)
UARTi transmit/receive control register 0
UART2 transmit/receive control register 0
b7
b7
b6
b6
b5
b5
b4
b4
b3
b3
b2
b2
b1
b1
b0
b0
Note 1: Set the corresponding port direction register to “0”.
Note 2: The settings of the corresponding port register and port direction register are invalid.
Note 1: Set the corresponding port direction register to “0”.
Note 2: The settings of the corresponding port register and port direction register are invalid.
Note 3: Only clock synchronous serial I/O mode and 8-bit UART mode are valid.
UFORM Transfer format select bit
UFORM Transfer format select bit
Nothing is assigned.
This bit can neither be set nor reset. When read, the value of this bit is “0”.
Nothing is assigned.
This bit can neither be set nor reset. When read, the value of this bit is “0”.
CKPOL
CKPOL
symbol
TXEPT
TXEPT
symbol
CRS
CLK0
CLK1
CLK0
CLK1
CRS
CRD
CRD
Bit
Bit
UiC0(i=0,1)
Symbol
Symbol
U2C0
(Note 3)
BRG count source
select bit
CTS/RTS function
select bit
Transmit register empty
flag
CTS/RTS disable bit
CLK polarity select bit
BRG count source
select bit
CTS/RTS function
select bit
Transmit register empty
flag
CTS/RTS disable bit
CLK polarity select bit
Bit name
Bit name
03A4
Address
Address
037C
16
1-88
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
, 03AC
16
b1 b0
0 0 : f
0 1 : f
1 0 : f
1 1 : Reserved
Valid when bit 4 = “0”
0 : CTS function is selected (Note 1)
1 : RTS function is selected (Note 2)
0 : Data present in transmit
1 : No data present in transmit
0 : CTS/RTS function enabled
1 : CTS/RTS function disabled
0 : Transmit data is output at
1 : Transmit data is output at
0 : LSB first
1 : MSB first
b1 b0
0 0 : f
0 1 : f
1 0 : f
1 1 : Inhibited
Valid when bit 4 = “0”
0 : CTS function is selected (Note 1)
1 : RTS function is selected (Note 2)
0 : Data present in transmit
1 : No data present in transmit
0 : CTS/RTS function enabled
1 : CTS/RTS function disabled
0 : TXDi pin is CMOS output
1 : TXDi pin is N-channel
0 : Transmit data is output at
1 : Transmit data is output at
0 : LSB first
1 : MSB first
(During clock synchronous
(During clock synchronous
register (during transmission)
register (during transmission)
16
register (transmission
completed)
(P6
programmable I/O port)
register (transmission
completed)
open-drain output
falling edge of transfer clock
and receive data is input at
rising edge
rising edge of transfer clock
and receive data is input at
falling edge
(P7
programmable I/O port)
falling edge of transfer clock
and receive data is input at
rising edge
rising edge of transfer clock
and receive data is input at
falling edge
1
8
32
1
8
32
0
3
serial I/O mode)
serial I/O mode)
When reset
When reset
is selected
is selected
is selected
is selected
and P6
functions
is selected
is selected
Function
Function
08
08
16
16
4
function as
b1 b0
Must always be “0”
0 0 : f
0 1 : f
1 0 : f
1 1 : Reserved
Valid when bit 4 = “0”
0 : CTS function is selected (Note 1)
1 : RTS function is selected (Note 2)
0 : Data present in transmit register
1 : No data present in transmit
0 : CTS/RTS function enabled
1 : CTS/RTS function disabled
Must always be “0”
b1 b0
0 0 : f
0 1 : f
1 0 : f
1 1 : Inhibited
Valid when bit 4 = “0”
0 : CTS function is selected (Note 1)
1 : RTS function is selected (Note 2)
0 : Data present in transmit register
1 : No data present in transmit
0 : CTS/RTS function enabled
1 : CTS/RTS function disabled
0: TXDi pin is CMOS output
1: TXDi pin is N-channel
Must always be “0”
0 : LSB first
1 : MSB first
open-drain output
(during transmission)
register (transmission completed)
(P6
programmable I/O port)
(during transmission)
register (transmission completed)
(P7
I/O port)
(During UART mode)
1
8
32
(During UART mode)
1
8
32
0
3
is selected
is selected
is selected
is selected
and P6
functions programmable
is selected
is selected
Mitsubishi microcomputers
Function
Function
M30240 Group
4
function as
R
R
W
W