EVB9S12NE64 Freescale Semiconductor, EVB9S12NE64 Datasheet - Page 13

• Manufacturer Part Number: EVB9S12NE64
• Description: KIT EVALUATION FOR NE64
• Manufacturer: Freescale Semiconductor

Specifications of EVB9S12NE64

• Mfg Application Notes: MC9S12NE64 Integrated Ethernet Controller Implementing an Ethernet Interface with the MC9S12NE64 Web Server Development with MC9S12NE64 and Open TCP
• Processor To Be Evaluated: MC9S12NE64
• Data Bus Width: 16 bit
• Interface Type: RS-232, Ethernet
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

E V B 9 S 1 2 N E 6 4
COM SW positions 1 and 2 will isolate the HCS12 SCI0 signals from the transceiver.
The 1, 4, 6, and 9 pins provide RS232 status. The status pins 1, 4, and 6 are connected on the
on the bottom of the development board to provide a NULL status returned to the host.
DB9 connector pin locations are provided access pads behind the connector on the EVB
board. User may isolate the connection pads by cutting the associated circuit trace on the
bottom of the board. The user may then apply status connections to the host by applying
HCS12 I/O signals and additional RS232 level conversion.
COM2
The COM2 port provides standard 9 pin connection with RS232 type interface to the HCS12
SCI1 peripheral. Note that the HCS12 SCI1 signals are shared with COM2 and the IRDA port.
Refer to the COM_SW for enabling the HCS12 RXD1 and TXD1 signals applied to this port.
Refer to the COM_SW and FLOW_SEL options for enabling RTS/CTS flow controls on this
port. HCS12 SCI1 TXD1 and RXD1 signals are converted to RS232 levels by U13 and
provided to the COM2 connector. The HCS12 PTL5 and PTG7 signals may be applied for the
optional RTS/CTS flow control on this port. Refer to the COM_SW and FLOW_SEL options for
proper option selections for this port. Following is the DB9S connection reference.
COM2
COM SW positions 3 and 4 will isolate the HCS12 SCI1 signals from the COM2 port
transceiver.
The 1, 4, 6, 7, 8, and 9 pins provide RS232 flow control and status. These pins are connected
on the on the bottom of the development board to provide a NULL status and flow control
returned to the host.
DB9 connector pin locations are provided access pads behind the connector on the EVB
board. User may isolate the connection pads by cutting the associated circuit trace on the
bottom of the board. The user may then apply status connections to the host by applying
HCS12 I/O signals and additional RS232 level conversion.
IRDA Port and JP3
The IRDA port provides the HCS12 SCI1 operation of a 115.2K baud compatible IRDA
interface. An IRDA transceiver is applied to provide up to 30 inches of wireless IRDA link (line
of sight, indoors only). The HCS12 SCI1 module must be configured for IRDA communication
to apply this port. See the COM_SW option positions 3, 4, 7, and 8 for properly enabling the
IRDA port hardware with the SCI1 module.
RXD1 3 7 CTS IN
TXD1 2 6 6
GND 5 9 9
1 1
4 4 8 RTS OUT
X
The COM-2 port has a Female (socket type) DB9 connector.
Pins 1, 4, 6 connected for status NULL to host.
Pins 7 and 8 optioned by COM_SW and FLOW_SEL
13
0 5 / 2 4 / 0 4