MC9S08AW32CFGE Freescale, MC9S08AW32CFGE Datasheet - Page 206

• Manufacturer Part Number: MC9S08AW32CFGE
• Manufacturer: Freescale

Specifications of MC9S08AW32CFGE

• Cpu Family: HCS08
• Device Core Size: 8b
• Frequency (max): 40MHz
• Interface Type: I2C/SCI/SPI
• Total Internal Ram Size: 2KB
• # I/os (max): 34
• Number Of Timers - General Purpose: 8
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: LQFP
• Program Memory Type: Flash
• Program Memory Size: 32KB
• Lead Free Status / RoHS Status: Compliant

Chapter 12 Serial Peripheral Interface (S08SPIV3)
Ensure that the SPI should not be disabled (SPE=0) at the same time as a bit change to the CPHA bit. These
changes should be performed as separate operations or unexpected behavior may occur.
12.3.2
This read/write register is used to control optional features of the SPI system. Bits 7, 6, 5, and 2 are not
implemented and always read 0.
206
Reset
LSBFE
MSTR
CPHA
SSOE
CPOL
Field
4
3
2
1
0
W
R
SPI Control Register 2 (SPI1C2)
Master/Slave Mode Select
0 SPI module configured as a slave SPI device
1 SPI module configured as a master SPI device
Clock Polarity — This bit effectively places an inverter in series with the clock signal from a master SPI or to a
slave SPI device. Refer to
0 Active-high SPI clock (idles low)
1 Active-low SPI clock (idles high)
Clock Phase — This bit selects one of two clock formats for different kinds of synchronous serial peripheral
devices. Refer to
0 First edge on SPSCK occurs at the middle of the first cycle of an 8-cycle data transfer
1 First edge on SPSCK occurs at the start of the first cycle of an 8-cycle data transfer
Slave Select Output Enable — This bit is used in combination with the mode fault enable (MODFEN) bit in
SPCR2 and the master/slave (MSTR) control bit to determine the function of the SS pin as shown in
LSB First (Shifter Direction)
0 SPI serial data transfers start with most significant bit
1 SPI serial data transfers start with least significant bit
MODFEN
0
0
7
0
0
1
1
= Unimplemented or Reserved
0
0
6
Section 12.4.1, “SPI Clock
SSOE
Table 12-1. SPI1C1 Field Descriptions (continued)
0
1
0
1
Figure 12-6. SPI Control Register 2 (SPI1C2)
Section 12.4.1, “SPI Clock
General-purpose I/O (not SPI)
General-purpose I/O (not SPI)
SS input for mode fault
Automatic SS output
0
0
5
MC9S08AW60 Data Sheet, Rev 2
Table 12-2. SS Pin Function
MODFEN
Master Mode
NOTE
Formats”
0
4
Description
Formats”
for more details.
BIDIROE
3
0
for more details.
Slave select input
Slave select input
Slave select input
Slave select input
0
0
2
Slave Mode
SPISWAI
Freescale Semiconductor
0
1
Table
SPC0
0
0
12-2.