Chapter 17 Serial Peripheral Interface
17-15
Bits Mnemonic Field
Name
Explanation
3 IFSD
SPI Inter Frame
Space Delay
Indicator
SPI Inter Frame Space Delay Indicator (Initial value: 0, R)
This flag is asserted during the time, where one frame has been processed and the
next frame is being delayed by the inter-frame-space timer.
0: no inter frame cycle
1: inter frame cycle
2
SIDLE
SPI Idle Indicator
SPI Idle Indicator (Initial value: 0, R)
This flag is asserted, if no transfer is in progress and if the transmit buffer is empty
or the stop mode (SESTP = 1) is activated.
0: run
1: Idle
1 STRDY
SPI Transmit
Ready
SPI Transmit Ready (Initial value: 0, R)
This flag indicates, that the transmit buffer is ready to receive new data. The flag is
cleared, if the transmit buffer is full.
0: transmit buffer full
1: one or more space in transmit buffer
0 SRRDY
SPI Receive
Ready
SPI Receive Ready (Initial value: 0, R)
This flag indicates, that there is valid data stored in the receive buffer. This flag is
cleared by reading the SPDR or SPRS register until the receive buffer is empty.
0: Receive buffer empty
1: one or more data in receive buffer
Figure 17.4.5 SPI Status Register (SPSR) (2/2)
Содержание TMPR4925
Страница 1: ...64 Bit TX System RISC TX49 Family TMPR4925 Rev 3 0 ...
Страница 4: ......
Страница 15: ...Handling Precautions ...
Страница 16: ......
Страница 18: ...1 Using Toshiba Semiconductors Safely 1 2 ...
Страница 40: ...3 General Safety Precautions and Usage Considerations 3 18 ...
Страница 42: ...4 Precautions and Usage Considerations 4 2 ...
Страница 43: ...TMPR4925 ...
Страница 44: ......
Страница 54: ...Chapter 1 Features 1 8 ...
Страница 58: ...Chapter 2 Block Diagram 2 4 ...
Страница 88: ...Chapter 4 Address Mapping 4 12 ...
Страница 226: ...Chapter 8 DMA Controller 8 58 ...
Страница 260: ...Chapter 9 SDRAM Controller 9 34 ...
Страница 480: ...Chapter 15 Interrupt Controller 15 32 ...
Страница 554: ...Chapter 19 Real Time Clock RTC 19 8 ...
Страница 555: ...Chapter 20 Removed 20 1 20 Removed ...
Страница 556: ...Chapter 20 Removed 20 2 ...
Страница 564: ...Chapter 21 Extended EJTAG Interface 21 8 ...
Страница 580: ...Chapter 22 Electrical Characteristics 22 16 ...
Страница 586: ...Chapter 23 Pin Layout Package 23 6 23 2 Package Package Type Package Code 256 pin PBGA PBGA 4L P BGA256 2727 1 27A4 ...
Страница 588: ...Chapter 24 Usage Notes 24 2 ...
Страница 590: ...Appendix A TX49 H2 Core Supplement A 2 ...