MC9S12NE64CPV Freescale Semiconductor, MC9S12NE64CPV Datasheet - Page 372
![IC MCU 25MHZ ETHERNT/PHY 112LQFP](/photos/12/20/122046/mc9s12ne64cpv_sml.jpg)
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 12 Ethernet Physical Transceiver (EPHYV2)
A 2.5 MHz internal clock is used for nibble wide transactions. A 10 MHz internal clock is used for serial
transactions.
Parallel to Serial: Converts the 4-bit wide nibbles from the MII to serial format before the information is
processed by subsequent blocks.
Manchester Encoder: Allows encoding of both the clock and data in one bit stream. A logical one is
encoded as a zero when the clock is high and a one when the clock is low. A logical zero is encoded as a
one when the clock is high and a zero when the clock is low.
Digital Filter: Performs pre-emphasis and low pass filtering of the input Manchester data.
DAC: Converts the digital data to an analog format before transmission on the media.
Carrier Sense: In half-duplex operation, carrier is asserted when either the transmit or receive medium is
active. In full-duplex operation, carrier asserted only on reception of data. During receive, carrier sense is
asserted during reception of a valid preamble, and de-asserted after reception of an EOF.
Loopback: Enabled when bit 0.14 is asserted. This loopback mode allows for the Manchester encoded and
filtered data to be looped back to the squelch block in the receive path. All the 10BASE-T digital functions
are exercised during this mode. The transmit and receive channels are disconnected from the media.
MII loopback (18.13) must be disabled to allow for correct operation of the digital loopback (0.14).
Link Generator: Generates a 100 ns duration pulse at the end of every 12 ms period of the transmission
path being idle (TXEN de-asserted). This pulse is used to keep the 10BASE-T link operational in the
absence of data transmission.
372
TX
RX
MII
MII
PARALLEL
PARALLEL
SERIAL
SERIAL
TO
TO
CARRIER
SENSE
MANCHESTER
RECOVERY
DECODER
Figure 12-21. 10BASE-T Block Diagram
MANCHESTER
TIMING
ENCODER
AND
MC9S12NE64 Data Sheet, Rev. 1.1
JABBER
POLARITY
CHECK
DIGITAL
FILTER
SQUELCH
LOOPBACK
(bit 0.14)
DIGITAL
LINE TRANSMITTER/
LINE RECEIVER
Freescale Semiconductor
PHY_RXN
PHY_TXN
PHY_TXP
PHY_RXP
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