PEB20534H-10 SIEMENS [Siemens Semiconductor Group], PEB20534H-10 Datasheet - Page 49

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

Abbreviations
Acronyms used in the block diagram are explained in the following:
DMAC - DMA Controller
GPP - General Purpose Port
Int. Queue - Interrupt Queue
JTAG - Joint Test Action Group
LBI - Local Bus Interface
MFP - Multi Function Port
PCI - Peripheral Components Interface
Rc- Receive
RFIFO - (Central) Receive FIFO
SCC3...0 - Serial Communication Controller 3...0
SSC - Synchronous Serial Controller
TFIFO - (Central) Transmit FIFO
Tx - Transmit
The functional blocks of the DSCC4 can be partitioned into three different groups:
– The first group provides the data transfer between the shared memory and on chip
– The second group supports the multiport and multiprotocol serial data communication.
– The third group provides control functions for external peripherals using the LBI and/or
Note: In demultiplexed bus operation mode, the MFP only supplies the De-multiplexed
Semiconductor Group
registers/FIFOs. It consists of the PCI System Bus Interface, the 9 DMACs, the
Central RFIFO, the Central TFIFO and the Central Interrupt Queue.
It consists of four SCCs.
low speed communication/control functions using SSC and/or GP. The third group
includes the peripheral blocks: GPP, SSC, LBI. These peripheral blocks can be used
in PCI mode configuration only.
address bus extension of the host interface.
49
Functional Description
Data Sheet 09.98
PEB 20534