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Freescale Semiconductor
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TWR-SER2
User guide
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Quick Start Guide
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Freescale Semiconductor TWR-SER2 User guide

TWR-SER2

User’s Manual

Rev. 1.2
Freescale Semiconductor Inc.
Contents
3.1 Power Supply ....................................................................................................................................................................... 6
3.2 Dual Ethernet PHYs ........................................................................................................................................................... 6
3.3 Hi-Speed Dual Role USB ................................................................................................................................................... 6
3.4 Low/Full-Speed Host USB............................................................................................................................................... 7
3.5 Serial Communications Interface ................................................................................................................................ 7
3.5.1 RS-232/485 Interface ....................................................................................................................................................................... 7
3.5.2 Serial-to-USB ........................................................................................................................................................................................ 8
3.5.3 Additonal RS232 Interfaces ........................................................................................................................................................... 8
3.6 CAN Bus .................................................................................................................................................................................. 9
3.7 Elevator Connections ..................................................................................................................................................... 10
4.1 Switch Settings ................................................................................................................................................................. 15
4.2 Jumper Settings ................................................................................................................................................................ 16
TWR-SER2 User’s Manual Page 2 of 17

1 Overview

The Serial2 Tower Board (TWR-SER2) is a peripheral Tower System Module designed to be used with a compatible MCU/MPU Tower Card. The TWR-SER2 provides additional interfaces that are common to feature rich MPU’s.
The TWR-SER2 features the following:
Industrial-grade Dual Ethernet PHY Transceiver w/ dual RJ-45 Ethernet Jacks, with integrated
magnetics and LED’s
Industrial-grade High Speed Dual Role USB PHY (utilizes MPU’s ULPI interface) Full Speed / Low Speed Host only USB (utilizes USB Host controller interface) Four Serial Ports
o Serial-to-USB (MC9S08JS16) w/ USB mini-B connector o RS-232 / RS-485 Transceivers on shared DB9 connector o 2x RS-232 Transceivers with option for full flow control on 2x5 Headers
A block diagram for the TWR-SER2 is shown in the figure below.
TWR-SER2 User’s Manual Page 3 of 17
DP/DN
ULPI
CAN RX/TX
RMII1MII / RMII0
RX/TX
DP/DN
UART0
SMSC
USB3300
USB mini-B
(OTG)
USB A
(HOST)
Secondary Elevator Connection
RJ-45 Jack
RJ-45 Jack
National Semi
DP83849I
Strap Option Jumpers MII/RMII Signal Select
Primary Elevator Connection
NXP
TJA1050
2x5 Header
CAN Bus Pin Out
CAN Isolation
Jumpers
DB9
Freescale
MC9S08JS16
USB mini-B
(Serial COM)
Intersil
ICL3225
(RS-232)
Intersil
ISL3176
(RS-485)
Selection / Isolation Jumpers
RS-232 / RS-485
Intersil ICL3225 (RS-232)
Intersil ICL3225 (RS-232)
2x5 Header
2x5 Header
Isolation Jumpers
Isolation Jumpers
Isolation Jumpers
Serial-to-USB
Dual Ethernet
CAN
RS-232 (w/ optional flow control) – 2x5 Header Interface
RS-232 or RS-485 DB9 Interface
USB OTG / USB Host
CANH/
CANL
RX/
TX
UART2
UART3
RXD/TXD CTS/RTS
RS-232
RXs/TXs
UART1
RXD/TXD CTS/RTS
RXD/TXD
RS-232
RX/TX
RS-495
RX/TX
RS-232
RXs/TXs
USB DP/DM
TPTD/TPRD
LEDs
TWR-SER2 User’s Manual Page 4 of 17
Figure 1 - TWR-SER2 Block Diagram
Figure 2 - TWR-SER2 Image

2 Reference Documents

The documents listed below should be referenced for more information on the Freescale Tower system and the TWR-SER2. Refer to http://www.freescale.com/tower for the latest revision of all released Tower documentation.
TWR-SER2 Schematics TWR-SER2 Quick Start Guide Freescale MC9S08JS16 Microcontroller with integrated USB Transceiver DP83849I PHYTER DUAL Industrial Temp Ethernet PHY Transceiver USB3300 Industrial Temp Hi-Speed USB PHY with ULPI Interface TJA1051T/3 High-Speed CAN Transceiver

3 Hardware Features

This section provides more details about the features and functionality of the TWR-SER2.
TWR-SER2 User’s Manual Page 5 of 17

3.1 Power Supply

It is intended that the TWR-SER2 be powered from a source in an assembled Tower System via the
5.0V and 3.3V supplies on the TWR-ELEV. This includes the functional Tower Elevator USB power connector, a capable MCU/MPU controller module, or other Tower System module capable of providing power to the entire Tower System. The TWR-SER2 is can also provide power to the Tower System when configured and used as a USB device through the Hi-Speed USB connection (Jumper J24).

3.2 Dual Ethernet PHYs

The TWR-SER2 module utilizes an industrial applicable National Semiconductor Dual Ethernet PHY Transceiver (DP83849I). The DP83849I features two fully independent 10/100 ports for multi-port applications. The TWR-SER2 is capable of supporting a single MII interface, a single RMII interface, or dual RMII interfaces. The Ethernet PHY is configurable via two sets of micro dip switches (SW1 and SW2).
Refer to these settings for typical Ethernet setting. For specific setting details refer to the TWR-SER2 Jumper Options section.
10/100 Dual RMII
o J8 and J9 should be un-shunted o Configure SW1 (1-8) as 11000000 o Configure SW2 (1-8) as 10100000
10/100 Signal Port RMII
o J9 should be un-shunted o Configure SW1 (1-8) as 11000000 o Configure SW2 (1-8) as 10100000
10/100 Signal Port MII
o J9 should be un-shunted o Configure SW1 (1-8) as 00110000 o Configure SW2 (1-8) as 00010000

3.3 Hi-Speed Dual Role USB

The TWR-SER2 features Hi-Speed Dual Role USB. This feature is implemented using the SMSC USB3300 USB Transceiver with ULPI interface. The ULPI interface is connected to the TWR-SER2 PCI edge connector connect to a Tower MCU module.
Refer to these settings to configure the High Speed USB ULPI Transceiver.
Host Mode – TWR-SER2 will be connected to a device, such as a USB Memory Stick using the
appropriate mini USB adaptor.
o J24 should be un-shunted
TWR-SER2 User’s Manual Page 6 of 17
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