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NSAM266SA Datasheet, PDF (2/52 Pages) National Semiconductor (TI) – NSAM266SA CompactSPEECHTM Digital Speech Processor with Serial Flash Interface
Features
Y Designed around the CR16A a 16-bit general-purpose
RISC core implementation of the CompactRISC archi-
tecture
Y 20 48 MHz operation
Y On-chip DSP Module (DSPM) for high-speed DSP
operations
Y On-chip codec clock generation and interface
Y Power-down mode
Y Selectable speech compression rate of 5 2 kbit s or
7 3 kbit s with silence compression
Y Up to 16 minutes recording on a 4-Mbit Serial Flash
(more than 1 hour total recording time on four devices)
Y The number of messages that can be stored is limited
only by memory size
Y MICROWIRE slave interface to an external
microcontroller
Y MICROWIRE master interface to Serial Flash memory
devices
Y Storage and management of messages
Y Programmable message tag for message categoriza-
tion e g Mailboxes InComing Messages (ICM) Out-
Going Messages (OGM)
Y Skip forward or backward during message playback
Y Digital volume control
Y Variable speed playback
Y Supports external vocabularies using Serial Flash or
expansion ROM
Y Multi-lingual speech synthesis using International Vo-
cabulary Support (IVS)
Y Vocabularies available in English Japanese Mandarin
German French and Spanish
Y DTMF generation and detection
Y DTMF detection during OutGoing Message playback
Y Single tone generation
Y Telephone line functions including busy and dial tone
detection
Y Call screening (input signal echoed to codec output)
Y Real-time clock
Y Direct access to message memory
Y Supports long-frame and short-frame codecs
Y Supports up to four 4-Mbit or two 8-Mbit Serial Flash
devices
Y Supports prerecorded IVS and OGM on Serial Flash
Y Available in 68-pin PLCC and 100-pin PQFP packages
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