M306V2 Mitsubishi, M306V2 Datasheet - Page 121

• Manufacturer Part Number: M306V2
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
• Manufacturer: Mitsubishi

Rev. 1.0
Figure 2.11.23 Typical transmit/receive timings in UART mode
<UART2>
• Example of transmit timing when transfer data is 8 bits long (parity enabled, one stop bit)
<UART2, UART0>
• Example of receive timing when transfer data is 8 bits long (parity disabled, one stop bit)
BRGi count
source
Receive enable bit
RxDi
Transfer clock
Receive
complete flag
RTSi
Receive interrupt
request bit
Transfer clock
Transmit enable
bit(TE)
Transmit buffer
empty flag(TI)
TxD
Transmit register
empty flag (TXEPT)
Transmit interrupt
request bit (IR)
Note: The transmit is started with overflow timing of BRG after having written in a value at the transmit buffer in the above timing.
2
“1”
“0”
“1”
“0”
“1”
“0”
“1”
“0”
“1”
“0”
“1”
“0”
“H”
“L”
“1”
“0”
Shown in ( ) are bit symbols.
The above timing applies to the following settings :
Reception triggered when transfer clock
is generated by falling edge of start bit
The above timing applies to the following settings :
•Parity is disabled.
One stop bit
• Parity is enabled.
• One stop bit.
• Transmit interrupt cause select bit = “1”.
ST
Start
bit
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
D
Data is set in UART2 transmit buffer register
0
D
Start bit
1
Tc
D
2
Sampled “L”
D
3
D
4
D
5
Cleared to “0” when interrupt request is accepted, or cleared by software
D
6
D
Parity
7
bit
P
D
0
SP
Stop
Receive data taken in
Transfered from UARTi receive register to
UARTi receive buffer register
bit
Transferred from UART2 transmit buffer register to UARTi transmit register
Cleared to “0” when interrupt request is accepted, or cleared by software
Tc = 16 (n + 1) / fi
fi : frequency of BRG2 count source (f
n : value set to BRG2
ST
Note
D
D
0
1
D
1
D
and ON-SCREEN DISPLAY CONTROLLER
2
D
D
7
3
MITSUBISHI MICROCOMPUTERS
D
4
D
5
M306V2ME-XXXFP
Stop bit
D
6
D
7
P
1
, f
SP
8
M306V2EEFP
, f
32
)
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