Chapter 13 Serial Peripheral Interface (S12SPIV5)
S12ZVHY/S12ZVHL Family Reference Manual Rev. 1.05
524
Freescale Semiconductor
13.3.2.4
SPI Status Register (SPISR)
Read: Anytime
Write: Has no effect
1
1
0
1
1
0
896
27.90 kbit/s
1
1
0
1
1
1
1792
13.95 kbit/s
1
1
1
0
0
0
16
1.5625 Mbit/s
1
1
1
0
0
1
32
781.25 kbit/s
1
1
1
0
1
0
64
390.63 kbit/s
1
1
1
0
1
1
128
195.31 kbit/s
1
1
1
1
0
0
256
97.66 kbit/s
1
1
1
1
0
1
512
48.83 kbit/s
1
1
1
1
1
0
1024
24.41 kbit/s
1
1
1
1
1
1
2048
12.21 kbit/s
Module Base +0x0003
7
6
5
4
3
2
1
0
R
SPIF
0
SPTEF
MODF
0
0
0
0
W
Reset
0
0
1
0
0
0
0
0
= Unimplemented or Reserved
Figure 13-6. SPI Status Register (SPISR)
Table 13-8. SPISR Field Descriptions
Field
Description
7
SPIF
SPIF Interrupt Flag
— This bit is set after received data has been transferred into the SPI data register. For
information about clearing SPIF Flag, please refer to
0 Transfer not yet complete.
1 New data copied to SPIDR.
5
SPTEF
SPI Transmit Empty Interrupt Flag
— If set, this bit indicates that the transmit data register is empty. For
information about clearing this bit and placing data into the transmit data register, please refer to
0 SPI data register not empty.
1 SPI data register empty.
4
MODF
Mode Fault Flag
— This bit is set if the SS input becomes low while the SPI is configured as a master and mode
fault detection is enabled, MODFEN bit of SPICR2 register is set. Refer to MODFEN bit description in
Section 13.3.2.2, “SPI Control Register 2 (SPICR2)”
. The flag is cleared automatically by a read of the SPI status
register (with MODF set) followed by a write to the SPI control register 1.
0 Mode fault has not occurred.
1 Mode fault has occurred.
Table 13-7. Example SPI Baud Rate Selection (25 MHz Bus Clock) (Sheet 3 of 3)
SPPR2
SPPR1
SPPR0
SPR2
SPR1
SPR0
Baud Rate
Divisor
Baud Rate
Содержание MC9S12ZVHL32
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Страница 774: ...Chapter 23 LIN Physical Layer S12LINPHYV2 S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 774 Freescale Semiconductor...
Страница 788: ...Appendix A MCU Electrical Specifications S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 788 Freescale Semiconductor...
Страница 794: ...Appendix B ADC Electricals S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 794 Freescale Semiconductor...
Страница 798: ...Appendix D IRC Electrical Specifications S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 798 Freescale Semiconductor...
Страница 802: ...Appendix F MSCAN Electrical Specifications S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 802 Freescale Semiconductor...
Страница 806: ...Appendix G NVM Electrical Parameters S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 806 Freescale Semiconductor...
Страница 810: ...Appendix H BATS Electrical Specifications S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 810 Freescale Semiconductor...
Страница 816: ...Appendix K OSC32K Electrical Specifications S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 816 Freescale Semiconductor...
Страница 822: ...Appendix L SPI Electrical Specifications S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 822 Freescale Semiconductor...
Страница 826: ...Appendix M LINPHY Electrical Specifications S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 826 Freescale Semiconductor...
Страница 829: ...Appendix O Package Information S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 830 Freescale Semiconductor O 1 144 LQFP...
Страница 830: ...Appendix O Package Information S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 Freescale Semiconductor 831...
Страница 831: ...Appendix O Package Information S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 832 Freescale Semiconductor...
Страница 832: ...Appendix O Package Information S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 Freescale Semiconductor 833 O 2 100 LQFP...
Страница 833: ...Appendix O Package Information S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 834 Freescale Semiconductor...
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