TPMC462 User Manual Issue 1.0.5
Page 6 of 26
1 Product Description
The TPMC462 is a standard single-width 32 bit PMC module and offers 4 channels of high
performance serial interface.
Three different standard modules are available: The TPMC462-10 provides 4 RS232 interfaces. The
TPMC462-11 provides 4 RS422 interfaces. The TPMC462-12 provides 2 RS232 and 2 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. One channel of the TPMC462-10/-12 offers full modem support (TxD, RxD, CTS, RTS, DSR,
DTR, CD, RI and GND) for RS232. One channel of the TPMC462-11 supports 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 TPMC462 can operate with 3.3V and 5.0V PCI I/O signaling voltage.
Figure 1-1 : Block Diagram
