User manual

Chapter 16 Serial Peripheral Interface (S12SPIV4)
MC9S12XDP512 Data Sheet, Rev. 2.11
714 Freescale Semiconductor
16.3.2 Register Descriptions
This section consists of register descriptions in address order. Each description includes a standard register
diagram with an associated figure number. Details of register bit and field function follow the register
diagrams, in bit order.
3
Reading from this register returns all zeros.
Register
Name
Bit 7 6 5 4 3 2 1 Bit 0
0x___0
SPICR1
R
SPIE SPE SPTIE MSTR CPOL CPHA SSOE LSBFE
W
0x___1
SPICR2
R0 0 0
MODFEN BIDIROE
0
SPISWAI SPC0
W
0x___2
SPIBR
R0
SPPR2 SPPR1 SPPR0
0
SPR2 SPR1 SPR0
W
0x___3
SPISR
R SPIF 0 SPTEF MODF 0000
W
0x___4
Reserved
R
W
0x___5
SPIDR
R
Bit 7 6 5 4 3 2 1 Bit 0
W
0x___6
Reserved
R
W
0x___7
Reserved
R
W
= Unimplemented or Reserved
Figure 16-2. SPI Register Summary