TEWS TPMC461 8 Channel Serial Interface RS232/RS422

Application Information

The TPMC461 is a standard single-width 32 bit PMC

module and offers 8 channels of high performance

asynchronous serial interface.

Three different standard modules are available:

The TPMC461-10R provides 8 RS232 interfaces.

The TPMC461-11R provides 8 RS422 interfaces.

The TPMC461-12R provides 4 RS232 and 4 RS422 interfaces.

Other configurations are available as factory build option

on a per channel base.

All modules offer front panel I/O with a HD50 SCSI-2 type

connector and P14 I/O. Each RS232 channel supports

RxD, TxD, RTS, CTS and GND. Each RS422 channel

supports RxD+/-, TxD+/- and GND. Two channels of the

TPMC461-10R/-12R offer full modem support (TxD, RxD,

CTS, RTS, DSR, DTR, CD, RI and GND) for RS232. Two

channels of the TPMC461-11R support RxD+/-, TxD+/-,

RTS+/-, CTS+/- and GND for RS422.

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 921.6 kbps for RS232

channels and 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 TPMC461 can operate with 3.3V and 5.0V PCI I/O

signaling voltage.

Software Support (TDRV002-SW-xx) for different

operating systems is available.