DEMO908GZ60E Freescale Semiconductor, DEMO908GZ60E Datasheet - Page 13

• Manufacturer Part Number: DEMO908GZ60E
• Description: BOARD DEMO FOR 908GZ60 MCU
• Manufacturer: Freescale Semiconductor
• Series: HC08GRr
• Type: MCUr

Specifications of DEMO908GZ60E

• Design Resources: DEMO908GZ60E Schematic
• Contents: Board, Cable, CD
• Processor To Be Evaluated: 908GZ
• Data Bus Width: 16 bit
• Interface Type: RS-232
• For Use With/related Products: 68HC908GZ60
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

D E M O 9 0 8 R G 6 0
Table 2: COM Connections
COM Connector
A standard 9-pin Dsub connector provides external connections for the SCI port. The SCI port
provides an alternate interface for use with the MON08 monitor. Component U2 provides RS-
232 translation services. The figure below details the DB9 connector.
Figure 3: COM Connector
The communications mode of the COM port is determined by the COM_SEL jumper. This 3-
pin jumper allows the user to select between SCI serial communications and single-wire
MON08 communications.
Figure 4: COM_MODE Jumper
COM Select Jumper
The COM_SEL jumper selects between the RS-232 protocol or the LIN protocol on the MCU
SCI port.
TXD
RXD
GND
COM
MON
HC08 Port
PTE0/TXD
PTE1/RXD
•
•
1
2
3
4
5
6
7
8
9
RS-232 Communications on COM
Enabled
MON08 on Port PTA0 Communica-
tions on COM Enabled
RTS
CTS
NC
U1-2
U1-3
MCU Pin
Female DB9 connector that interfaces to the HC08 internal SCI1 serial
port via the U2 RS232 transceiver. It provides simple 2 wire asynchro-
nous serial communications without flow control. Flow control is provided
at test points on the module.
Pins 1, 4, and 6 are connected together for NULL status to the host.
TXD OUT
RXD IN
COM Signal
13
Connector
I/O PORT
J1-5
J1-7
A U G U S T
6 ,
2 0 0 4