參數(shù)資料
型號(hào): M34506M4-XXXFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, MICROCONTROLLER, PDSO20
封裝: 5.30 X 12.60 MM, 1.27 MM PITCH, PLASTIC, SOP-20
文件頁數(shù): 42/114頁
文件大小: 937K
代理商: M34506M4-XXXFP
Rev.2.00
Aug 28, 2006
page 29 of 119
7643 Group
REJ03B0054-0200
SPI Compatible Mode Operation
Setting the SPI Mode Select Bit (bit 0 of SIOCON2) puts the serial
I/O in SPI compatible mode. The Synchronous Clock Select Bit
(bit 6 of SIOCON1) determines whether the serial I/O is an SPI
master or slave. When the external clock is selected (“0”), the se-
rial I/O is in slave mode; When the internal clock is selected (“1”),
the serial I/O is in master mode.
In SPI compatible mode the SRXD pin functions as a MISO (Mas-
ter In/Slave Out) pin and the STXD pin functions as a MOSI
(Master Out/Slave In) pin.
In slave mode the transmit data is output from the MISO pin and
the receive data is input from the MISO pin. The SRDY pin func-
tions as the chip-select signal input pin from an external.
In master mode the transmit data is output from the MOSI pin and
the receive data is input from the MISO pin. The SRDY pin func-
tions as the chip-select signal output pin to an external.
qSlave Mode Operation
In slave mode of SPI compatible mode 4 types of clock polarity
and clock phase can be usable by bits 3 and 4 of serial I/O control
register 2.
If the SRDY pin is held “H”, the shift clock is inhibited, the serial I/
O counter is set to “7”. If the SRDY pin is held “L”, then the shift
clock will start.
Make sure during transfer to maintain the SRDY input at “L” and
not to write data to the serial I/O counter.
Figure 23 shows the serial I/O timing.
相關(guān)PDF資料
PDF描述
M34506E4FP 4-BIT, OTPROM, MICROCONTROLLER, PDSO20
M34508G4HFP 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20
M34508G4GP 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20
M34508G4H-XXXFP 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20
M34508G4-XXXFP 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M34507E4FP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M34507M2-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-BIT CISC SINGLE-CHIP MICROCOMPUTER 4500 SERIES
M34507M4-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M34508G4FP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M34508G4GP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER