MC68HC908SR12CFA Freescale Semiconductor, MC68HC908SR12CFA Datasheet - Page 132
MC68HC908SR12CFA
Manufacturer Part Number
MC68HC908SR12CFA
Description
MICROCONTROLLER 48 PIN
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908SR12MFAE.pdf
(404 pages)
Specifications of MC68HC908SR12CFA
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SCI
Peripherals
LVD, POR, PWM, Temp Sensor
Number Of I /o
31
Program Memory Size
12KB (12K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 14x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
Q1145673
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC68HC908SR12CFA
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
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Clock Generator Module (CGM)
8.6.3 PLL Multiplier Select Registers
Data Sheet
132
NOTE:
Address:
Address:
The PLL multiplier select registers (PMSH and PMSL) contain the
programming information for the modulo feedback divider.
MUL[11:0] — Multiplier Select Bits
The multiplier select bits have built-in protection such that they cannot
be written when the PLL is on (PLLON = 1).
Reset:
Reset:
Read:
Read:
Write:
Write:
These read/write bits control the modulo feedback divider that selects
the VCO frequency multiplier N. (See
Programming the
registers configure the modulo feedback divider the same as a value
of $0001. Reset initializes the registers to $0040 for a default multiply
value of 64.
Figure 8-6. PLL Multiplier Select Register High (PMSH)
Figure 8-7. PLL Multiplier Select Register Low (PMSL)
$0038
$0039
MUL7
Bit 7
Bit 7
0
0
0
Clock Generator Module (CGM)
= Unimplemented
MUL6
6
0
0
6
1
PLL.) A value of $0000 in the multiplier select
MUL5
5
0
0
5
0
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
MUL4
4
0
0
4
0
MUL11
8.4.3 PLL Circuits
MUL3
3
0
3
0
MUL10
MUL2
Freescale Semiconductor
2
0
2
0
MUL9
MUL1
1
0
1
0
and
8.4.6
MUL8
MUL0
Bit 0
Bit 0
0
0
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