TWR-S08LH64 Freescale Semiconductor, TWR-S08LH64 Datasheet - Page 10

• Manufacturer Part Number: TWR-S08LH64
• Description: TOWER SYSTEM S08LH64
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of TWR-S08LH64

• Contents: Board
• Description/function: Tower System LCD Module
• Interface Type: USB
• Backlighting: No Backlighting
• Data Bus Width: 8 bit
• Module Size (w X H X T): 3.55 in x 3.2 in
• Number Of Segments: 2 x 28
• Operating Supply Voltage: 5 V
• Operating Voltage: 3.3 V
• Product: Display Modules
• Software: Software Included
• Touch Panel: No Touch Panel
• Silicon Manufacturer: Freescale
• Core Architecture: HCS08
• Core Sub-architecture: HCS08
• Silicon Core Number: MC9S08
• Silicon Family Name: S08LH
• Kit Contents: Board, Cable, CD
• Rohs Compliant: Yes
• For Use With/related Products: Freescale Tower System
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

T W R - S 0 8 L L / L H
U S E R
LOW VOLTAGE RESET
The target MCU applies an internal Low Voltage Detect (LVD) circuit. The LVD holds the MCU
in reset until applied voltage reaches an appropriate level. The LVD also protect against
under-voltage conditions. Consult the target device RM for details on LVD operation.
TIMING
The TWR-S08 uses the MC9S08LL or MC9S08LH internal timing source by default.
external 32 kHz XTAL oscillator, configured for low-power operation, is also provided. Consult
the target device RM for details on configuring the selected timing source.
COMMUNICATIONS
The TWR-S08 board supports serial communications through an on-board, low-voltage, RS-
232 physical layer transceiver (PHY) connected to a 2x5, 0.1”, pin header. The PHY supports
valid RS-232 signaling for input voltage levels down to +1.8V. The COM_SEL header selects
the serial path applied.
RS-232
An RS-232 translator provides RS-232 to TTL/CMOS logic level translation on the COM
connector. The COM_PORT connector is a 2x5, 0.1”, pin header. Communication signals
TXD1 and RXD1 are routed from the transceiver to the MCU. Hardware flow control signals
RTS and CTS are available on the logic side of the transceiver. These signals are routed to
vias located near the transceiver. RTS has been biased properly to support 2-wire RS-232
communications. Figure 4 below shows the COM signal connections.
Figure 4: COM Signal Connections
G U I D E
However, the OSBDM does not support serial communications at this time.
The COM_SEL header allows the SCI signals to be routed to the OSBDM.
MCU Signal
PTC1/TXD
PTC0RXD
U S E R
G U I D E
COM Signal
TXD
RXD
NOTE:
10
A P R I L
2 7 ,
2 0 1 0
An