參數(shù)資料
型號: M306H3FCFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP116
封裝: 20 X 20 MM, 0.65 MM PITCH, PLASTIC, LQFP-116
文件頁數(shù): 26/135頁
文件大?。?/td> 2583K
代理商: M306H3FCFP
Rev.1.00
2004.03.23
page 121 of 320
M306H3MC-XXXFP/FCFP
(a) CLK Polarity Select Function
Use the UiC0 register (i = 0 to 2)’s CKPOL bit to select the transfer clock polarity. Figure 2.11.10
shows the polarity of the transfer clock.
(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)
Figure 2.11.10. Transfer Clock Polarity
(b) LSB First/MSB First Select Function
Use the UiC0 register (i = 0 to 2)’s UFORM bit to select the transfer format. Figure 2.11.11 shows the
transfer format.
Figure 2.11.11. Transfer Format
(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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