Users Manual
Table Of Contents
- 37. Serial Sound Interface (SSI)
- 38. Serial Peripheral Interface (RSPIa)
- 38.1 Overview
- 38.2 Register Descriptions
- 38.2.1 RSPI Control Register (SPCR)
- 38.2.2 RSPI Slave Select Polarity Register (SSLP)
- 38.2.3 RSPI Pin Control Register (SPPCR)
- 38.2.4 RSPI Status Register (SPSR)
- 38.2.5 RSPI Data Register (SPDR)
- 38.2.6 RSPI Sequence Control Register (SPSCR)
- 38.2.7 RSPI Sequence Status Register (SPSSR)
- 38.2.8 RSPI Bit Rate Register (SPBR)
- 38.2.9 RSPI Data Control Register (SPDCR)
- 38.2.10 RSPI Clock Delay Register (SPCKD)
- 38.2.11 RSPI Slave Select Negation Delay Register (SSLND)
- 38.2.12 RSPI Next-Access Delay Register (SPND)
- 38.2.13 RSPI Control Register 2 (SPCR2)
- 38.2.14 RSPI Command Register m (SPCMDm) (m = 0 to 7)
- 38.3 Operation
- 38.3.1 Overview of RSPI Operations
- 38.3.2 Controlling RSPI Pins
- 38.3.3 RSPI System Configuration Examples
- 38.3.3.1 Single Master/Single Slave (with This MCU Acting as Master)
- 38.3.3.2 Single Master/Single Slave (with This MCU Acting as Slave)
- 38.3.3.3 Single Master/Multi-Slave (with This MCU Acting as Master)
- 38.3.3.4 Single Master/Multi-Slave (with This MCU Acting as Slave)
- 38.3.3.5 Multi-Master/Multi-Slave (with This MCU Acting as Master)
- 38.3.3.6 Master (Clock Synchronous Operation)/Slave (Clock Synchronous Operation) (with This MCU Acting as Master)
- 38.3.3.7 Master (Clock Synchronous Operation)/Slave (Clock Synchronous Operation) (with This MCU Acting as Slave)
- 38.3.4 Data Format
- 38.3.5 Transfer Format
- 38.3.6 Communications Operating Mode
- 38.3.7 Transmit Buffer Empty/Receive Buffer Full Interrupts
- 38.3.8 Error Detection
- 38.3.9 Initializing RSPI
- 38.3.10 SPI Operation
- 38.3.11 Clock Synchronous Operation
- 38.3.12 Loopback Mode
- 38.3.13 Self-Diagnosis of Parity Bit Function
- 38.3.14 Interrupt Sources
- 38.4 Link Operation by Event Linking
- 38.5 Usage Notes
- 39. CRC Calculator (CRC)
- 40. SD Host Interface (SDHIa)
- 40.1 Overview
- 40.2 Register Details
- 40.2.1 Command Register (SDCMD)
- 40.2.2 Argument Register (SDARG)
- 40.2.3 Data Stop Register (SDSTOP)
- 40.2.4 Block Count Register (SDBLKCNT)
- 40.2.5 Response Register 10 (SDRSP10), Response Register 32 (SDRSP32), Response Register 54 (SDRSP54), Response Register 76 (SDRSP76)
- 40.2.6 SD Status Register 1 (SDSTS1)
- 40.2.7 SD Status Register 2 (SDSTS2)
- 40.2.8 SD Interrupt Mask Register 1 (SDIMSK1)
- 40.2.9 SD Interrupt Mask Register 2 (SDIMSK2)
- 40.2.10 SDHI Clock Control Register (SDCLKCR)
- 40.2.11 Transfer Data Size Register (SDSIZE)
- 40.2.12 Card Access Option Register (SDOPT)
- 40.2.13 SD Error Status Register 1 (SDERSTS1)
- 40.2.14 SD Error Status Register 2 (SDERSTS2)
- 40.2.15 SD Buffer Register (SDBUFR)
- 40.2.16 SDIO Mode Control Register (SDIOMD)
- 40.2.17 SDIO Status Register (SDIOSTS)
- 40.2.18 SDIO Interrupt Mask Register (SDIOIMSK)
- 40.2.19 DMA Transfer Enable Register (SDDMAEN)
- 40.2.20 SDHI Software Reset Register (SDRST)
- 40.2.21 Swap Control Register (SDSWAP)
- 40.3 SDHI Operation
- 40.3.1 Data Block Format of the SD Card
- 40.3.2 SD Buffer and the SDBUFR Register
- 40.3.3 SD Card Detection
- 40.3.4 SD Card Write Protection
- 40.3.5 Communication Errors and Timeouts
- 40.3.6 Examples of Issuing a Command
- 40.3.6.1 Command Absent of Response Reception and Data Transfer
- 40.3.6.2 Command Absent of Data Transfer
- 40.3.6.3 Single Block Read Command (CMD17)
- 40.3.6.4 Single Block Write Command (CMD24)
- 40.3.6.5 Multi-Block Read Command (CMD18)
- 40.3.6.6 Multi-Block Write Command (CMD25)
- 40.3.6.7 IO_RW_DIRECT Command (CMD52)
- 40.3.6.8 IO_RW_EXTENDED Command (CMD53 (Multi-Block Read))
- 40.3.6.9 IO_RW_EXTENDED (CMD53 Multi-Block Write)
- 40.3.6.10 DMA Transfer
- 40.4 Interrupts
- 40.5 Notes on Using the SDHI
- 40.5.1 Illegal Read Access During a Multi-Block Read and How To Avoid It
- 40.5.2 SDBUFR Register Illegal Write Error
- 40.5.3 Automatic Control of the SDHI Clock Output
- 40.5.4 Restrictions on Setting the C52PUB Bit During a Multi-Block Write Sequence
- 40.5.5 Note on Setting the SDCLKCR Register
- 40.5.6 Writing to the SDSTOP Register During a Multi-Block Read Sequence
- 40.5.7 Controlling Module Operation
- 41. Bluetooth Low Energy (BLE)
- 42. Trusted Secure IP (TSIP-Lite)
- 43. Capacitive Touch Sensing Unit (CTSU)
- 43.1 Overview
- 43.2 Register Descriptions
- 43.2.1 CTSU Control Register 0 (CTSUCR0)
- 43.2.2 CTSU Control Register 1 (CTSUCR1)
- 43.2.3 CTSU Synchronous Noise Reduction Setting Register (CTSUSDPRS)
- 43.2.4 CTSU Sensor Stabilization Wait Control Register (CTSUSST)
- 43.2.5 CTSU Measurement Channel Register 0 (CTSUMCH0)
- 43.2.6 CTSU Measurement Channel Register 1 (CTSUMCH1)
- 43.2.7 CTSU Channel Enable Control Register 0 (CTSUCHAC0)
- 43.2.8 CTSU Channel Enable Control Register 1 (CTSUCHAC1)
- 43.2.9 CTSU Channel Enable Control Register 2 (CTSUCHAC2)
- 43.2.10 CTSU Channel Enable Control Register 3 (CTSUCHAC3)
- 43.2.11 CTSU Channel Enable Control Register 4 (CTSUCHAC4)
- 43.2.12 CTSU Channel Transmit/Receive Control Register 0 (CTSUCHTRC0)
- 43.2.13 CTSU Channel Transmit/Receive Control Register 1 (CTSUCHTRC1)
- 43.2.14 CTSU Channel Transmit/Receive Control Register 2 (CTSUCHTRC2)
- 43.2.15 CTSU Channel Transmit/Receive Control Register 3 (CTSUCHTRC3)
- 43.2.16 CTSU Channel Transmit/Receive Control Register 4 (CTSUCHTRC4)
- 43.2.17 CTSU High-Pass Noise Reduction Control Register (CTSUDCLKC)
- 43.2.18 CTSU Status Register (CTSUST)
- 43.2.19 CTSU High-Pass Noise Reduction Spectrum Diffusion Control Register (CTSUSSC)
- 43.2.20 CTSU Sensor Offset Register 0 (CTSUSO0)
- 43.2.21 CTSU Sensor Offset Register 1 (CTSUSO1)
- 43.2.22 CTSU Sensor Counter (CTSUSC)
- 43.2.23 CTSU Reference Counter (CTSURC)
- 43.2.24 CTSU Error Status Register (CTSUERRS)
- 43.3 Operation
- 43.4 Usage Notes
- 44. 12-Bit A/D Converter (S12ADE)
- 44.1 Overview
- 44.2 Register Descriptions
- 44.2.1 A/D Data Registers y (ADDRy) (y = 0 to 7, 16 to 20, 27), A/D Data Duplication Register (ADDBLDR), A/D Temperature Sensor Data Register (ADTSDR), A/D Internal Reference Voltage Data Register (ADOCDR)
- 44.2.2 A/D Self-Diagnosis Data Register (ADRD)
- 44.2.3 A/D Control Register (ADCSR)
- 44.2.4 A/D Channel Select Register A0 (ADANSA0)
- 44.2.5 A/D Channel Select Register A1 (ADANSA1)
- 44.2.6 A/D Channel Select Register B0 (ADANSB0)
- 44.2.7 A/D Channel Select Register B1 (ADANSB1)
- 44.2.8 A/D-Converted Value Addition/Average Function Select Register 0 (ADADS0)
- 44.2.9 A/D-Converted Value Addition/Average Function Select Register 1 (ADADS1)
- 44.2.10 A/D-Converted Value Addition/Average Count Select Register (ADADC)
- 44.2.11 A/D Control Extended Register (ADCER)
- 44.2.12 A/D Conversion Start Trigger Select Register (ADSTRGR)
- 44.2.13 A/D Conversion Extended Input Control Register (ADEXICR)
- 44.2.14 A/D Sampling State Register n (ADSSTRn) (n = 0 to 7, L, T, O)
- 44.2.15 A/D Disconnection Detection Control Register (ADDISCR)
- 44.2.16 A/D Event Link Control Register (ADELCCR)
- 44.2.17 A/D Group Scan Priority Control Register (ADGSPCR)
- 44.2.18 A/D Compare Function Control Register (ADCMPCR)
- 44.2.19 A/D Compare Function Window A Channel Select Register 0 (ADCMPANSR0)
- 44.2.20 A/D Compare Function Window A Channel Select Register 1 (ADCMPANSR1)
- 44.2.21 A/D Compare Function Window A Extended Input Select Register (ADCMPANSER)
- 44.2.22 A/D Compare Function Window A Comparison Condition Setting Register 0 (ADCMPLR0)
- 44.2.23 A/D Compare Function Window A Comparison Condition Setting Register 1 (ADCMPLR1)
- 44.2.24 A/D Compare Function Window A Extended Input Comparison Condition Setting Register (ADCMPLER)
- 44.2.25 A/D Compare Function Window A Lower-Side Level Setting Register (ADCMPDR0)
- 44.2.26 A/D Compare Function Window A Upper-Side Level Setting Register (ADCMPDR1)
- 44.2.27 A/D Compare Function Window A Channel Status Register 0 (ADCMPSR0)
- 44.2.28 A/D Compare Function Window A Channel Status Register 1 (ADCMPSR1)
- 44.2.29 A/D Compare Function Window A Extended Input Channel Status Register (ADCMPSER)
- 44.2.30 A/D High-Potential/Low-Potential Reference Voltage Control Register (ADHVREFCNT)
- 44.2.31 A/D Compare Function Window A/B Status Monitor Register (ADWINMON)
- 44.2.32 A/D Compare Function Window B Channel Select Register (ADCMPBNSR)
- 44.2.33 A/D Compare Function Window B Lower-Side Level Setting Register (ADWINLLB)
- 44.2.34 A/D Compare Function Window B Upper-Side Level Setting Register (ADWINULB)
- 44.2.35 A/D Compare Function Window B Channel Status Register (ADCMPBSR)
- 44.2.36 A/D Data Storage Buffer Register n (ADBUFn) (n = 0 to 15)
R01UH0823EJ0110 Rev.1.10 Page 1366 of 1852
Nov 30, 2020
RX23W Group 38. Serial Peripheral Interface (RSPIa)
38.3 Operation
In this section, the serial transfer period means a period from the beginning of driving valid data to the fetching of the
final valid data.
38.3.1 Overview of RSPI Operations
The RSPI is capable of synchronous serial transfers in slave mode (SPI operation), single-master mode (SPI operation),
multi-master mode (SPI operation), slave mode (clock synchronous operation), and master mode (clock synchronous
operation). A particular mode of the RSPI can be selected by using the MSTR, MODFEN, and SPMS bits in SPCR.
Table 38.5 lists the relationship between RSPI modes and SPCR settings, and a description of each mode.
Note 1. This function is not supported in this mode.
Note 2. When the SPCR.TXMD bit is 1, receiver buffer full detection, overrun error detection, and parity error detection are not performed.
Note 3. When the SPCR2.SPPE bit is 0, parity error detection is not performed.
Note 4. When the SPCR2.SCKASE bit is 1, overrun error detection does not proceed.
Table 38.5 Relationship between RSPI Modes and SPCR Settings and Description of Each Mode
Mode
SPI Operation Clock Synchronous Operation
Slave Single-Master Multi-Master Slave Master
MSTR bit setting 0 1 1 0 1
MODFEN bit setting 0 or 1 0 1 0 0
SPMS bit setting 0 0 0 1 1
RSPCKA signal Input Output Output/Hi-Z Input Output
MOSIA signal Input Output Output/Hi-Z Input Output
MISOA signal Output/Hi-Z Input Input Output Input
SSLA0 signal Input Output Input Hi-Z*
1
Hi-Z*
1
SSLA1, SSLA3 signals Hi-Z*
1
Output Output/Hi-Z Hi-Z*
1
Hi-Z*
1
SSL polarity change
function
Supported Supported Supported — —
Transfer rate Up to PCLK/8 Up to PCLK/2 Up to PCLK/2 Up to PCLK/8 Up to PCLK/2
Clock source RSPCK input On-chip baud rate
generator
On-chip baud rate
generator
RSPCK input On-chip baud rate
generator
Clock polarity Two
Clock phase Two Two Two One (CPHA = 1) Two
First transfer bit MSB/LSB
Transfer data length 8 to 16, 20, 24, 32 bits
Burst transfer Possible
(CPHA = 1)
Possible
(CPHA = 0,1)
Possible
(CPHA = 0,1)
——
RSPCK delay control Not supported Supported Supported Not supported Supported
SSL negation delay control Not supported Supported Supported Not supported Supported
Next-access delay control Not supported Supported Supported Not supported Supported
Transfer activation method SSL input active
or RSPCK
oscillation
Transmit buffer is
written to when a
transmit buffer empty
interrupt request is
generated or the
SPTEF flag is 1
Transmit buffer is
written to when a
transmit buffer empty
interrupt request is
generated or the
SPTEF flag is 1
RSPCK oscillation Transmit buffer is
written to when a
transmit buffer empty
interrupt request is
generated or the
SPTEF flag is 1
Sequence control Not supported Supported Supported Not supported Supported
Transmit buffer empty
detection
Supported
Receive buffer full
detection
Supported*
2
Overrun error detection Supported*
2
Supported*
2,
*
4
Supported*
2,
*
4
Supported*
2
Supported*
2
Parity error detection Supported*
2,
*
3
Mode fault error detection Supported
(MODFEN = 1)
Not supported Supported Not supported Not supported