參數(shù)資料
型號(hào): M37753S4CFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, 40 MHz, MICROCONTROLLER, PQFP80
封裝: PLASTIC, QFP-80
文件頁(yè)數(shù): 59/110頁(yè)
文件大?。?/td> 1439K
代理商: M37753S4CFP
51
MITSUBISHI MICROCOMPUTERS
M37753M8C-XXXFP, M37753M8C-XXXHP
M37753S4CFP, M37753S4CHP
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Selection of transfer format
In clock synchronous serial communication, transfer format can be
selected by bit 7 of the Transmit/Receive control register 0. When bit
7 is “0”, transfer format is LSB first. When bit 7 is “1”, transfer format
is MSB first.
This function is realized by changing connection relation between
the transmit buffer register and the receive buffer register when writ-
ing transmit data to the transmit buffer register or reading receive
data from the receive buffer register. Accordingly, the transmitter’s
operation is the same in both transfer formats.
Figure 64 shows the connection relation.
Fig. 64 Connection relation between transmit buffer register, receive buffer register, and data bus
Bit 7 in Transmit/Receive
control register 0
Write to transmit
buffer register
Read from receive
buffer register
0
(LSB first)
1
(MSB first)
Transmit buffer
register
DB7
Data bus
D7
D6
D5
D4
D3
D2
D1
D0
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Transmit buffer
register
DB7
Data bus
D7
D6
D5
D4
D3
D2
D1
D0
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Receive buffer
register
DB7
Data bus
D7
D6
D5
D4
D3
D2
D1
D0
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Receive buffer
register
DB7
Data bus
D7
D6
D5
D4
D3
D2
D1
D0
DB6
DB5
DB4
DB3
DB2
DB1
DB0
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