參數(shù)資料
型號: M30100
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
中文描述: 單片16位CMOS微機(jī)
文件頁數(shù): 100/164頁
文件大小: 3302K
代理商: M30100
deveopment
Tentative Specifications REV.E1
Serial I/O
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30100/M30102 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
99
b7
UARTi bit rate generator
b0
Symbol
U0BRG
U1BRG
Address
00A1
16
00A9
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
A
A
(b7
(b0
b7
b0
UARTi transmit buffer register
Function
Transmit data (Note)
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns out to be
indeterminate.
Symbol
U0TB
U1TB
Address
00A3
16
, 00A2
16
00AB
16
, 00AA
16
When reset
Indeterminate
Indeterminate
W
R
A
(b15)
b7
Symbol
U0RB
U1RB
Address
00A7
16
, 00A6
16
00AF
16
, 00AE
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 serial I/O mode select bits (bit 2 to 0 at
addresses 00A0
16
and 00A8
16
) are set to “000
2
” or receive enable bit 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 00A6
16
, and 00AE
16
)
is read out or when this register is read out in word-size. When reading data from the
UARTi receive buffer, data should be read high-byte first then low-byte using byte-
size.
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.
In an attempt to write to these bits, write “0”. The value, if read, turns out to
be indeterminate.
Receive data
W
R
Receive data
A
A
A
A
A
A
Note: When transfer data length is 9-bit long, write high-byte first then low-byte with byte-
size.
Figure 1.15.3. Serial I/O-related registers (1)
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