M52210DEMO Freescale Semiconductor, M52210DEMO Datasheet - Page 15

• Manufacturer Part Number: M52210DEMO
• Description: BOARD DEV MCF5221X LOW COST
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®r
• Type: MCUr

Specifications of M52210DEMO

• Contents: Module and Misc Hardware
• Processor To Be Evaluated: MCF52210
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet, USB
• Architecture: 32-bit (not ARM)
• Silicon Manufacturer: Freescale
• Core Architecture: Coldfire
• Core Sub-architecture: Coldfire V2
• Silicon Core Number: MCF52
• Silicon Family Name: MCF5221x
• Kit Contents: Board
• Rohs Compliant: Yes
• For Use With/related Products: MCF5221x
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

COMMUNICATIONS
The M52210DEMO board provides 2 SCI ports, 1 QSPI port, and 1 IIC port. RS-232 commu-
nication is supported through a DB9 (COM) connector and through connector J1. QSPI and
IIC communications are supported only through connector J1. The COM_EN option header
enables SCI0 functionality between the MCU and the COM connector.
SCI Port
An RS-232 transceiver provides RS-232 to TTL/CMOS logic level translation between the
COM connector and the MCU. The COM connector is a 9-pin Dsub, right-angle connector. A
ferrite bead on shield ground provides conducted immunity protection. Communication signals
TXD0 and RXD0 are routed from the transceiver to the MCU. These signals are also available
on connector J1. Hardware flow control signals RTS0 and CTS0 are also routed from the
transceiver to the MCU. RTS is biased for correct 2-wire operation.
SCI1 signals are available on connector J1 and route directly between the MCU and connector
J1. No RS-232 logic-level translation is provided on SCI1 signals.
COM_EN
The COM_EN option header individually connects and disconnects SCI0 signals between the
MCU and the SCI transceiver. Removing a shunt disconnects the associated signal. Installing
a shunt connects the associated signal.
Figure 10: COM_EN Option Header
COM Connector
A standard 9-pin Dsub connector provides external connections for the SCI0 port. The Dsub
shell is connected to board ground through a ferrite bead. The ferrite bead provides noise
isolation on the RS-232 connection. The DB9 connector pin-out is shown below.
Figure 11: COM Connector
4, 6
TXD
RXD
1, 6
GND
RXD
CTS
RTS
TXD
1
2
3
4
5
6
7
8
9
▪
▪
▪
▪
1, 4
RTS
CTS
NC
▪
▪
▪
▪
Female DB9 connector that interfaces to the ColdFire internal SCI1 serial
port via the RS232 transceiver.
Pins 1, 4, and 6 are connected together.
Enabled
Enabled
Enabled
Enabled
On
15
Shunt
Disabled
Disabled
Disabled
Disabled
Off