14.6.2 SPI frame format
The SPI interface has 4 lines. SPFSS is used for slave selection. One of the main features of the SPI for-
mat is that the <SPO> and <SPH> bits in the SSPCR0 register can be used to set the SPCLK operation timing.
SSPCR0 <SPO> is used to set the level at which SPCLK in idle state is held.
SSPCR0 <SPH> is used to select the clock edge at which data is latched.
SSPCR0<SPO>
SSPCR0<SPH>
0
"Low" state
Capture data at the 1st clock edge.
1
"High" state
Capture data at the 2nd clock edge.
MSB
LSB
Hi-Z(Note1
㸧
Hi-Z(Note1
㸧
Hi-Z(Note2)
MSB
Hi-Z(Note2
㸧
LSB
SPCLK
SPFSS
SPDO
SPDI
Figure 14-4 SPI frame format (single transfer, <SPO>="0" & <SPH>="0")
LSB
MSB
LSB
LSB
LSB
MSB
MSB
MSB
Hi-Z(Note2)
Hi-Z(Note2)
㸲
to 16bit
SPCLK
SPFSS
SPDO
SPDI
Figure 14-5 SPI frame format (continuous transfer,<SPO>="0" & <SPH>="0")
Note 1: When transmission is disable, SPDO terminal doesn't output and is high impedance status. This terminal needs
to add suitable pull-up/down resistance to valid the voltage level.
Note 2: SPDI terminal is always input and internal gate is open. In case of transmission signal will be high impedance sta-
tus, this terminal needs to add suitable pull-up/down resistance to valid the voltage level.
TMPM3V6/M3V4
14. Synchronous Serial Port (SSP)
14.6 Frame Format
Page 328
2019-02-06
Summary of Contents for TMPM3V4
Page 1: ...32 Bit RISC Microcontroller TX03 Series TMPM3V6 M3V4 ...
Page 2: ... 2019 Toshiba Electronic Devices Storage Corporation ...
Page 7: ...Revision History Date Revision Comment 2019 02 06 1 First Release ...
Page 8: ......
Page 22: ...xiv ...
Page 52: ...TMPM3V6 M3V4 3 Processor Core 3 6 Exclusive access Page 30 2019 02 06 ...
Page 148: ...TMPM3V6 M3V4 7 Exceptions 7 6 Exception Interrupt Related Registers Page 126 2019 02 06 ...
Page 178: ...TMPM3V6 M3V4 9 Input Output port 9 2 Block Diagrams of Ports Page 156 2019 02 06 ...
Page 354: ...TMPM3V6 M3V4 14 Synchronous Serial Port SSP 14 6 Frame Format Page 332 2019 02 06 ...
Page 419: ...TMPM3V6 M3V4 Page 397 2019 02 06 ...
Page 462: ...TMPM3V6 M3V4 21 Watchdog Timer WDT 21 5 Control register Page 440 2019 02 06 ...
Page 544: ......