psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 26

• Manufacturer Part Number: psb21391
• Description: Siemens Codec With Upn Transceiver
• Manufacturer: Infineon Technologies Corporation

Data Sheet
1.6
Figure 9 shows the architecture of the SCOUT containing the following functional
blocks:
• U
• Serial 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 U
• Reset generation (watchdog timer, under voltage detection)
• Analog Front End (AFE) of the codec part
• Digital Signal Processor (DSP) for codec/filter functions, tone generation, voice data
These functional blocks are described in the following chapters.
functionality respectively
manipulation and speakerphone function (SCOUT-PX)
PN
interface transceiver with SmartLink PSB 2197 or ISAC-P TE PSB 2196
General Functions and Device Architecture
PN
16
PSB 21391
PSB 21393
2001-03-07
Overview