MC9S08AC48MFDE Freescale Semiconductor, MC9S08AC48MFDE Datasheet - Page 242
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MC9S08AC48MFDE
Manufacturer Part Number
MC9S08AC48MFDE
Description
MCU 8BIT 48K FLASH 48-QFN
Manufacturer
Freescale Semiconductor
Series
HCS08r
Datasheet
1.MC9S08AC60CFJE.pdf
(348 pages)
Specifications of MC9S08AC48MFDE
Core Processor
HCS08
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
38
Program Memory Size
48KB (48K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-QFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Chapter 14 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.
14.4.2
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.
242
Reset
LSBFE
MSTR
CPHA
SSOE
CPOL
Field
4
3
2
1
0
W
R
SPI Control Register 2 (SPIC2)
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 14.5.1, “SPI Clock
SSOE
Table 14-1. SPIC1 Field Descriptions (continued)
0
1
0
1
Figure 14-6. SPI Control Register 2 (SPIC2)
Section 14.5.1, “SPI Clock
MC9S08AC60 Series Data Sheet, Rev. 2
General-purpose I/O (not SPI)
General-purpose I/O (not SPI)
SS input for mode fault
Automatic SS output
0
0
5
Table 14-2. 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
14-2.
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