DEMO9S08QG8E Freescale Semiconductor, DEMO9S08QG8E Datasheet - Page 11

• Manufacturer Part Number: DEMO9S08QG8E
• Description: BOARD DEMO FOR MC9S08QG8
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of DEMO9S08QG8E

• Contents: Board
• Processor To Be Evaluated: MC9S08QG8
• Data Bus Width: 8 bit
• Interface Type: RS-232, USB
• Silicon Manufacturer: Freescale
• Core Architecture: HCS08
• Core Sub-architecture: HCS08
• Silicon Core Number: MC9S08
• Silicon Family Name: S08QG
• Kit Contents: MC9S08QG8 Board, Software, Cables, Connectors
• Rohs Compliant: Yes
• For Use With/related Products: MC9S08QG4, MC9S08QG8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

option jumper removed, the transceiver is always on. When the transceiver is ON, the
AutoShutoff feature of the device is disabled.
Table 1: COM_EN Option Header
COM Connector
A standard 9-pin Dsub connector provides external connections for the SCI 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 4: COM Connector
Freescale Semiconductor
4, 6
TXD
RXD
1, 6
GND
COM_EN
COM_EN
COM_EN
▪
▪
▪
▪
▪
▪
1
2
3
4
5
▪
▪
▪
6
7
8
9
MCU controls RS-232 Transceiver
RS-232 Transceiver disabled
RS-232 Transceiver always ON. AutoShutoff disabled
1, 4
RTS
CTS
NC
Female DB9 connector that interfaces to the HC(S)08 internal SCI1 serial
port via the U2 RS232 transceiver.
asynchronous serial communications without flow control. Flow control is
provided at test points on the board.
Pins 1, 4, and 6 are connected together.
It provides simple 2-wire
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