MC9S12NE64CPV Freescale Semiconductor, MC9S12NE64CPV Datasheet - Page 156
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MC9S12NE64CPV
Manufacturer Part Number
MC9S12NE64CPV
Description
IC MCU 25MHZ ETHERNT/PHY 112LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.MC9S12NE64VTU.pdf
(554 pages)
Specifications of MC9S12NE64CPV
Mfg Application Notes
MC9S12NE64 Integrated Ethernet Controller Implementing an Ethernet Interface with the MC9S12NE64 Web Server Development with MC9S12NE64 and Open TCP
Core Processor
HCS12
Core Size
16-Bit
Speed
25MHz
Connectivity
EBI/EMI, Ethernet, I²C, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
70
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.375 V ~ 3.465 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
112-LQFP
Data Bus Width
16 bit
Data Ram Size
8 KB
Interface Type
I2C, SCI, SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
70
Number Of Timers
16 bit
Operating Supply Voltage
- 0.3 V to + 3 V
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 65 C
On-chip Adc
10 bit
For Use With
EVB9S12NE64E - BOARD EVAL FOR 9S12NE64DEMO9S12NE64E - DEMO BOARD FOR 9S12NE64
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Lead Free Status / Rohs Status
No RoHS Version Available
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Chapter 4 Clocks and Reset Generator (CRGV4)
4.3.2.12
This register is used to restart the COP time-out period.
Read: always reads 0x0000
Write: anytime
When the COP is disabled (CR[2:0] = “000”) writing to this register has no effect.
When the COP is enabled by setting CR[2:0] nonzero, the following applies:
4.4
This section gives detailed informations on the internal operation of the design.
4.4.1
The PLL is used to run the MCU from a different time base than the incoming OSCCLK. For increased
flexibility, OSCCLK can be divided in a range of 1 to 16 to generate the reference frequency. This offers
a finer multiplication granularity. The PLL can multiply this reference clock by a multiple of 2, 4, 6,...
126,128 based on the SYNR register.
The PLL is a frequency generator that operates in either acquisition mode or tracking mode, depending on
the difference between the output frequency and the target frequency. The PLL can change between
acquisition and tracking modes either automatically or manually.
156
Reset
W
R
Writing any value other than 0x0055 or 0x00AA causes a COP reset. To restart the COP time-out
period you must write 0x0055 followed by a write of 0x00AA. Other instructions may be executed
between these writes but the sequence (0x0055, 0x00AA) must be completed prior to COP end of
time-out period to avoid a COP reset. Sequences of 0x0055 writes or sequences of 0x00AA writes
are allowed. When the WCOP bit is set, 0x0055 and 0x00AA writes must be done in the last 25%
of the selected time-out period; writing any value in the first 75% of the selected period will cause
a COP reset.
Functional Description
Phase Locked Loop (PLL)
Bit 7
CRG COP Timer Arm/Reset Register (ARMCOP)
0
0
7
Although it is possible to set the two dividers to command a very high clock
frequency, do not exceed the specified bus frequency limit for the MCU.
If (PLLSEL = 1), Bus Clock = PLLCLK / 2
Bit 6
0
0
6
PLLCLK
Figure 4-15. ARMCOP Register Diagram
Bit 5
MC9S12NE64 Data Sheet, Rev. 1.1
0
0
5
=
2 OSCCLK
×
CAUTION
Bit 4
0
0
4
×
---------------------------------- -
[
[
REFDV
SYNR
Bit 3
0
0
3
+
+
1
1
]
]
Bit 2
0
0
2
Freescale Semiconductor
Bit 1
0
0
1
Bit 0
0
0
0
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