PSB 2113

• Integrates D-channel and B-channel protocol controller
• Replaces solutions based on ICC PEB 2070 and HSCX-TE PSB 21525
• Easy adjustment of software using ICC and HSCXTE
• Pin compatible and software compatible to IPAC PSB 2115
• Various types of protocol support depending on operating mode (Non-auto mode, transparent mode)
• Efficient transfer of data blocks from/to system memory by DMA (for one B-channel) or interrupt request (for both B-channels)
• Enlarged FIFO buffers for B-channels (2x64 byte)
• FIFO buffers for D-channel (2x32 byte)
• Additional I/O interface with 2 interrupt inputs
• PCM interface for non IOM-2 compatible peripheral data controllers
• Reduced register address space due to indirect address mode option
• Programmable timer (1 ... 63 ms) for continuous or single interrupts
• 3 programmable LED outputs
• 8-bit multiplexed or demultiplexed bus interface
• Siemens/Intel or Motorola mP interface

The 3-Channel ISDN PC Adapter Circuit 3PAC integrates all B-channel and D-channel functions for a host based ISDN access solution on a single chip PSB 2113. Especially for Uinterface applications only a transceiver needs to be connected to the 3PAC.

The 3PAC is pin compatible to the ISDN PC Adapter Circuit IPAC PSB 2113 which is a one chip solution featuring a 3 channel controller + S-interface.

PSB 2113 includes an HDLC controller for the D-channel and two protocol controllers for the Bchannels.

PSB 2113 can be used for HDLC protocol or transparent access. The system integration is simplified by several host interface configurations selected via pin strapping. They include multiplexed and demultiplexed interface options as well as the optional indirect register access mechanism which reduces the number of necessary registers in the address space to 2 locations.

The 3PAC combines the functions of the ISDN Communication Controller (ICC PEB 2070) and the High-Level Serial Communications Controller Extended (HSCX-TE PSB 2113) providing additional features and enhanced functionality.

The FIFO size of the B-channel buffers is 2x64 bytes per direction.

An auxiliary I/O port with interrupt capabilities on two input lines is available. These I/O lines may be used to connect a DTMF receiver or other peripheral components to the 3PAC which need software control or have to forward status information to the host. Peripheral data controllers can transfer data on a PCM interface which is mapped into the B-channels on the IOM-2 interface.

The 3PAC PSB 2113 is produced in advanced CMOS technology.