參數(shù)資料
型號(hào): Q67103-H6594
廠商: SIEMENS AG
英文描述: Memory Time Switch Extended Large MTSXL
中文描述: 內(nèi)存定時(shí)開(kāi)關(guān)擴(kuò)展大型MTSXL
文件頁(yè)數(shù): 11/51頁(yè)
文件大小: 1052K
代理商: Q67103-H6594
PEB 2447
Functional Description
Semiconductor Group
11
03.97
2
The MTSXL is a memory time switch device. Operating with a device clock of
16.384 MHz it can connect any of 2048 PCM input channels to any of 2048 output
channels.
A general block diagram of the MTSXL is shown in
figure 3
.
Functional Description
2.1
The input information of a complete frame is stored twice in the two on-chip 16-kbit data
memories DM 0 and DM 1 (Data Memory 0 and Data Memory 1). The incoming
2048 channels of 8 bits each are written in sequence into fixed positions of DM 0 and
DM 1. This is controlled by the input counter in the timing control block with a 8 kHz
repetition rate.
For outputting, two connection memories (CM 0 and CM 1) are read in sequence
synchronously. Each entry in the connection memory CM 0 / CM 1 points to a location
in data memory DM 0 / DM 1. The byte in this data memory location is transferred into
the current output time slot. The read access to the CM’s is controlled by an output
counter. CM 0 supplies the PCM data for outputs OUT0 to OUT15, CM 1 supplies the
PCM data for outputs OUT16 to OUT31.
General Operation
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