MMC2107 - Freescale Semiconductor

Freescale Semiconductor, Inc.
Serial Peripheral Interface Module (SPI)
Memory Map and Registers
17.7.3 SPI Baud Rate Register
Address: 0x00cb_0002
Bit 7 6 5 4 3 2 1 Bit 0
Read: 0
Write:
SPPR6 SPPR5 SPPR4
0
SPR2 SPR1 SPR0
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Freescale Semiconductor, I
NOTE:
Reset: 0 0 0 0 0 0 0 0
Read: Anytime
= Writes have no effect and the access terminates without a transfer error exception.
Figure 17-4. SPI Baud Rate Register (SPIBR)
Write: Anytime; writing to unimplemented bits has no effect
SPPR[6:4] — SPI Baud Rate Preselection Bits
The SPPR[6:4] and SPR[2:0] bits select the SPI clock divisor as
shown in Table 17-5. Reset clears SPPR[6:4] and SPR[2:0], selecting
an SPI clock divisor of 2.
SPR[2:0] — SPI Baud Rate Bits
The SPPR[6:4] and SPR[2:0] bits select the SPI clock divisor as
shown in Table 17-5. Reset clears SPPR[6:4] and SPR[2:0], selecting
an SPI clock divisor of 2.
Writing to SPIBR during a transmission may cause spurious results.
MMC2107 – Rev. 2.0
Technical Data
MOTOROLA Serial Peripheral Interface Module (SPI) 379
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