psb21381 Infineon Technologies Corporation, psb21381 Datasheet - Page 30

• Manufacturer Part Number: psb21381
• Description: Siemens Codec With S/t Transceiver
• Manufacturer: Infineon Technologies Corporation

Data Sheet
1.6
Figure 14 shows the architecture of the SCOUT containing the following functional
blocks:
• S/T interface transceiver with ISAC-S TE PSB 2186 functionality respectively
• Serial and parallel microcontroller interface
• HDLC controller with 64 byte FlFOs per direction and programmable FIFO threshold
• IOM-2 handler and interface for terminal application, MONITOR handler
• Clock and timing generation
• Digital PLL to synchronize IOM-2 to S/T
• Reset generation (watchdog timer)
• Analog Front End (AFE) of the codec part
• Digital Signal Processer (DSP) for codec/filter functions, tone generation, voice data
These functional blocks are described in the following chapters.
manipulation and speakerphone function (SCOUT-SX)
General Functions and Device Architecture
20
PSB 21381/2
PSB 21383/4
2001-03-12
Overview