參數(shù)資料
型號: M30201MX-XXXFP
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
中文描述: 單片16位CMOS微機
文件頁數(shù): 77/159頁
文件大?。?/td> 1496K
代理商: M30201MX-XXXFP
Unde
Serial I/O
deeopmen
Mitsubishi microcomputers
M30201 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
77
Figure 1.71. Serial I/O-related registers (1)
b7
UARTi bit rate generator
b0
Symbol
U0BRG
U1BRG
Address
03A1
16
03A9
16
When reset
Indeterminate
Indeterminate
Function
Assuming that set value = n, BRGi divides the
count source by n + 1
00
16
to FF
16
Values that can be set
W
A
R
b7
b0
(b15)
(b8)
b7
b0
UARTi transmit buffer register
Function
Transmit data
Nothing is assigned.
When write, set "0". When read, their contents are indeterminate.
Symbol
U0TB
U1TB
Address
03A3
16
, 03A2
16
03AB
16
, 03AA
16
When reset
Indeterminate
Indeterminate
W
A
R
(b15)
b7
Symbol
U0RB
U1RB
Address
03A7
16
, 03A6
16
03AF
16
, 03AE
16
When reset
Indeterminate
Indeterminate
b0
(b8)
b7
b0
UARTi receive buffer register
Function
(During UART mode)
Function (During clock
synchronous serial I/O
mode)
Bit name
Bit
symbol
0 : No framing error
1 : Framing error found
0 : No parity error
1 : Parity error found
0 : No error
1 : Error found
Note: Bits 15 through 12 are set to “0” when the receive enable bit is set to “0”. (Bit 15 is set
to “0” when bits 14 to 12 all are set to “0”.) Bits 14 and 13 are also set to “0” when the
lower byte of the UARTi receive buffer register (addresses 03A6
16
, and 03AE
16
) is
read out.
Invalid
Invalid
Invalid
OER
FER
PER
SUM
Overrun error flag
(Note)
Framing error flag
(Note)
Parity error flag
(Note)
Error sum flag
(Note)
0 : No overrun error
1 : Overrun error found
0 : No overrun error
1 : Overrun error found
Nothing is assigned.
When write, set "0". When read, the value of these bits is “0”.
Receive data
W
R
Receive data
A
A
A
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