MC9S12NE64VTU Freescale Semiconductor, MC9S12NE64VTU Datasheet - Page 371

• Manufacturer Part Number: MC9S12NE64VTU
• Description: IC MCU 25MHZ ETHERNET/PHY 80TQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12NE64VTU

• 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: 38
• 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 ~ 105°C
• Package / Case: 80-TQFP Exposed Pad, 80-eTQFP, 80-HTQFP, 80-VQFP
• 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: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Figure 12-20
transmission of fast link pulses to establish communications with partners that are auto-negotiation able.
The receive block determines the capabilities of the link partner and writes to the link partner ability
register (register 5). The arbitration block determines the highest common mode of operation to establish
the link.
12.4.3
The 10BASE-T interface implements the physical layer specification for a 10 Mbps over two pairs of
twisted-pair cables. The specifications are given in clause 14 of the IEEE 802.3 standard.
In 10BASE-T mode, Manchester encoding is used. When transmitting, nibbles from the MII are converted
to a serial bit stream and then Manchester encoded. When receiving, the Manchester encoded bit stream
is decoded and converted to nibbles for presentation to the MII.
Freescale Semiconductor
MR_AUTONEG_ENABLE
MR_MAIN_RESET
POWER_ON
10BASE-T
CLK
shows the main blocks used in the auto-negotiation function. The transmit block allows
MR_ADV_ABILITY[15:0]
TD_AUTONEG
TRANSMIT
MR_ADV_ABILITY[3:0]
transmit_disable
transmit_ability
complete_ack
flp_link_good
transmit_ack
ack_finished
Figure 12-20. Auto-Negotiation
MC9S12NE64 Data Sheet, Rev. 1.1
TX_LINK_CONTROL[1:0]
MR_AUTONEG_COMPLETE
TX_LINK_STATUS[1:0]
MR_PARALLEL_DETECTION_FAULT
ARBITRATION
NLP RECEIVE LINK
LINK_TEST_RECEIVE
INTEGRITY TEST
1
2
DO
MR_LP_ADV_ABILITY[3:0]
RD
flp_receive_idle
match_wo_ack
1
2 LP_LINK_STATUS[1:0]
match_w_ack
receive_done
flp_link_good
LP_LINK_CONTROL[1:0]
MR_LP_ADV_ABILITY[15:0]
Functional Description
LINKPULSE
RECEIVE
371