參數(shù)資料
型號: M30240S9-XXXFP
廠商: Mitsubishi Electric Corporation
英文描述: 16 Characters x 2 Lines, 5x7 Dot Matrix Character and Cursor
中文描述: 單片16位CMOS微機
文件頁數(shù): 86/142頁
文件大?。?/td> 1637K
代理商: M30240S9-XXXFP
1-86
Mitsubishi microcomputers
M30240 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Preliminary Specifications REV. E
Specifications in this manual are tentative and subject to change
UART0 through UART2
Figure 1.77: Serial I/O-related registers (1)
b7
UARTi bit rate generator
b0
Symbol
U0BRG
U1BRG
U2BRG
Address
03A1
16
03A9
16
0379
16
When reset
Indeterminate
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
R
b0
(b7
(b8)
b7
b0
UARTi transmit buffer register
Function
Transmit data
Nothing is assigned.
These bits can neither be set nor reset. When read, their contents are indeterminate.
Symbol
U0TB
U1TB
U2TB
Address
03A3
16
, 03A2
16
03AB
16
, 03AA
16
037B
16
, 037A
16
When reset
Indeterminate
Indeterminate
Indeterminate
W
R
(b15)
b7
Symbol
U0RB
U1RB
U2RB
Address
03A7
16
, 03A6
16
03AF
16
, 03AE
16
037F
16
, 037E
16
When reset
Indeterminate
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 1: Bits 15 through 12 are set to “0” when the serial I/O mode select bit (bits 2 to 0 at addresses 03A0
16
,
03A8
16
and 0378
16
) are set to “000
2
” or 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
, 03AE
16
and 037E
16
) is read out.
Invalid
Invalid
Invalid
OER
FER
PER
SUM
Overrun error flag (Note 1)
Framing error flag (Note 1)
Parity error flag (Note 1)
Error sum flag (Note 1)
0 : No overrun error
1 : Overrun error found
0 : No overrun error
1 : Overrun error found
Nothing is assigned.
These bits can neither be set nor reset. When read, the value of these bits is “0”.
Receive data
W
R
Receive data
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