MC68HC908LJ24CPB Freescale Semiconductor, MC68HC908LJ24CPB Datasheet - Page 132
MC68HC908LJ24CPB
Manufacturer Part Number
MC68HC908LJ24CPB
Description
IC MCU 24K FLASH 8MHZ SPI 64LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908LK24CFUE.pdf
(464 pages)
Specifications of MC68HC908LJ24CPB
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, IRSCI, SPI
Peripherals
LCD, LVD, POR, PWM
Number Of I /o
40
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
64-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Clock Generator Module (CGM)
8.6.5 PLL Reference Divider Select Register
Data Sheet
132
NOTE:
NOTE:
Address:
The PLL reference divider select register (PMDS) contains the
programming information for the modulo reference divider.
RDS[3:0] — Reference Divider Select Bits
The reference divider select bits have built-in protection such that they
cannot be written when the PLL is on (PLLON = 1).
The default divide value of 1 is recommended for all applications.
Reset:
Read:
Write:
These read/write bits control the modulo reference divider that selects
the reference division factor, R. (See
Programming the
PLLON bit in the PCTL is set. A value of $00 in the reference divider
select register configures the reference divider the same as a value of
$01. (See
initializes the register to $01 for a default divide value of 1.
Figure 8-9. PLL Reference Divider Select Register (PMDS)
$003B
Bit 7
0
0
Clock Generator Module (CGM)
8.4.7 Special Programming
= Unimplemented
6
0
0
PLL.) RDS[3:0] cannot be written when the
5
0
0
4
0
0
8.4.3 PLL Circuits
RDS3
MC68HC908LJ24/LK24 — Rev. 2.1
3
0
Exceptions.) Reset
RDS2
Freescale Semiconductor
2
0
RDS1
1
0
and
8.4.6
RDS0
Bit 0
1
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