PEB20534H-10 SIEMENS [Siemens Semiconductor Group], PEB20534H-10 Datasheet - Page 21

• Manufacturer Part Number: PEB20534H-10
• Description: DMA Supported Serial Communication Controller with 4 Channels DSCC4
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

• Protocol and Mode Independent
• Microprocessor Interface
• 8-/16-bit optional Local Bus Interface (LBI) for driving non-PCI peripherals in an PCI
• Synchronous Serial Control interface (SSC) for controlling peripherals.
• 16-bit General Purpose Port (GPP).
Semiconductor Group
- Asynchronous PPP mode
- Octet Synchronous PPP mode
- Bit Synchronous PPP mode
- Extended transparent mode
- Data bit inversion
- Data over- and underflow detection
- Timer
- 33 MHz/32-bit PCI bus interface option.
- 33 MHz/32-bit De-multiplexed bus interface option.
- 8-channel DMA controller with buffer chaining capability.
- Circular interrupt queues with variable size.
- Maskable interrupts for each channel
environment.
- Automatic handling of S- and I-frames
- Automatic processing of control byte(s)
- Modulo-8 or modulo-128 operation
- Programmable time-out and retry conditions
- Normal Response Mode operation for slave
- Character oriented transmission of HDLC frame (flag, data, CRC, flag)
- Start/stop bit framing of single character
- No zero bit insertion/deletion
- Programmable character map of 32 hard-wired characters (00
- Four programmable characters for additional mapping
- Insertion/deletion of control characters corresponding to character maps
- Octet oriented transmission of HDLC frame (flag, data, CRC, flag)
- Programmable character map of 32 hard-wired characters (00
- Four programmable characters for additional mapping
- Insertion/deletion of control characters corresponding to character maps
- Zero bit insertion/deletion
- Bit oriented transmission of HDLC frame (flag, data, CRC, flag)
- Zero bit insertion/deletion
- 15 consecutive ’1’ bits abort sequence
- Fully bit transparent (no framing, no bit manipulation)
Master 15-word burst read and write capability (PCI Mode).
Master 4-word burst read and write capability (DEMUX Mode).
Slave single-word read and write capability.
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Data Sheet 09.98
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PEB 20534
Overview