參數(shù)資料
型號(hào): M306H7MG-XXXFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100
封裝: 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100
文件頁數(shù): 9/115頁
文件大?。?/td> 3146K
代理商: M306H7MG-XXXFP
Rev.2.10
Oct 25, 2006
Page 106 of 326
REJ03B0152-0210
M306H7MG-XXXFP/MC-XXXFP/FGFP
10. SERIAL I/O
10.2.1
CLK Polarity Select Function
Use the UiC0 register (i = 0 to 2)’s CKPOL bit to select the transfer clock polarity. Figure 10.10 shows the
polarity of the transfer clock.
Figure 10.10
Transfer Clock Polarity
10.2.2
LSB First/MSB First Select Function
Use the UiC0 register (i = 0 to 2)’s UFORM bit to select the transfer format. Figure 10.11 shows the transfer
format.
Figure 10.11
Transfer Format
(2) When the UiC0 register’s CKPOL bit = 1 (transmit data output at the rising
edge and the receive data taken in at the falling edge of the transfer clock)
D1
D2
D3
D4
D5
D6
D7
D1
D2
D3
D4
D5
D6
D7
D0
TXDi
RXDi
CLKi
(1) When the UiC0 register’s CKPOL bit = 0 (transmit data output at the falling
edge and the receive data taken in at the rising edge of the transfer clock)
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
D0
TXDi
RXDi
CLKi
Note 1: This applies to the case where the UiC0 register’s UFORM bit = 0
(LSB first) and UiC1 register's UiLCH bit = 0 (no reverse).
Note 2: When not transferring, the CLKi pin outputs a high signal.
Note 3: When not transferring, the CLKi pin outputs a low signal.
i = 0 to 2
(Note 2)
(Note 3)
(1) When UiC0 register's UFORM bit = 0 (LSB first)
D0
D0
D1
D2
D3
D4
D5
D6
D7
D1
D2
D3
D4
D5
D6
D7
TXDi
RXDi
CLKi
(2) When UiC0 register's UFORM bit = 1 (MSB first)
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
TXDi
RXDi
CLKi
Note: This applies to the case where the UiC0 register’s CKPOL bit = 0
(transmit data output at the falling edge and the receive data taken
in at the rising edge of the transfer clock) and the UiC1 register’s
UiLCH bit = 0 (no reverse).
i = 0 to 2
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