TEWS TPMC378 Conduction cooled 8 channel isolated RS422 interface

Application Information

The TPMC378 is a conduction cooled single-width 32 bit

PMC module offering 8 channels of high performance

RS422 asynchronous serial interface with P14 I/O. Each

of the eight channels is isolated from the system and

against each other by isolated transceivers with integrated

DC/DC converters.

Each RS422 channel supports a four wire interface (RX+,

RX-, TX+, TX-) plus ground (GND). Two channels

additionally support flow control with RTS+/- and CTS+/-.

Each channel has 64 byte transmit and receive FIFOs to

significantly reduce the overhead required to provide data

to and get data from the transmitters and receivers. The

FIFO trigger levels are programmable and the baud rate is

individually programmable up to 5.5296 Mbps for RS422

channels. The UART offers readable FIFO levels.

All channels generate interrupts on PCI interrupt INTA. For

fast interrupt source detection the UART provides a

special Global Interrupt Source Register.

All serial channels use ESD protected transceivers. ESD

protection is up to ±15KV.

The TPMC378 can operate with 3.3V and 5.0V PCI I/O

signaling voltage.

Software Support (TDRV002-SW-xx) for different

operating systems is available.