MC908LJ24CPKE Freescale Semiconductor, MC908LJ24CPKE Datasheet - Page 311
MC908LJ24CPKE
Manufacturer Part Number
MC908LJ24CPKE
Description
IC MCU 8BIT 24K FLASH 80-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908LK24CFUE.pdf
(464 pages)
Specifications of MC908LJ24CPKE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, IRSCI, SPI
Peripherals
LCD, LVD, POR, PWM
Number Of I /o
48
Program Memory Size
24KB (24K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
80-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Part Number:
MC908LJ24CPKE
Manufacturer:
Freescale Semiconductor
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14.13.5 CGND (Clock Ground)
MC68HC908LJ24/LK24 — Rev. 2.1
Freescale Semiconductor
When an SPI is configured as a master, the SS input can be used in
conjunction with the MODF flag to prevent multiple masters from driving
MOSI and SPSCK. (See
SS pin to set the MODF flag, the MODFEN bit in the SPSCK register
must be set. If the MODFEN bit is low for an SPI master, the SS pin can
be used as a general-purpose I/O under the control of the data direction
register of the shared I/O port. With MODFEN high, it is an input-only pin
to the SPI regardless of the state of the data direction register of the
shared I/O port.
The CPU can always read the state of the SS pin by configuring the
appropriate pin as an input and reading the port data register. (See
Table
CGND is the ground return for the serial clock pin, SPSCK, and the
ground for the port output buffers. It is internally connected to V
shown in
Note 1. X = Don’t care
SPE
0
1
1
1
14-3.)
Serial Peripheral Interface Module (SPI)
SPMSTR
Table
X
0
1
1
(1)
14-1.
MODFEN
Table 14-3. SPI Configuration
X
X
0
1
14.8.2 Mode Fault
Master without MODF
SPI Configuration
Master with MODF
Not enabled
Slave
Serial Peripheral Interface Module (SPI)
Error.) For the state of the
General-purpose I/O;
General-purpose I/O;
State of SS Logic
SS ignored by SPI
SS ignored by SPI
Input-only to SPI
Input-only to SPI
Data Sheet
I/O Signals
SS
as
311
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