MMC2107 Datasheet, PDF (379/618 Pages) –

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
0
SPPR6 SPPR5 SPPR4
Write:
SPR2 SPR1 SPR0
Reset: 0
0
0
0
0
0
0
0
= Writes have no effect and the access terminates without a transfer error exception.
Figure 17-4. SPI Baud Rate Register (SPIBR)
Read: Anytime
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.
NOTE: Writing to SPIBR during a transmission may cause spurious results.
MMC2107 – Rev. 2.0
MOTOROLA
Serial Peripheral Interface Module (SPI)
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Technical Data
379