Ricoh D131 - Page 1104

D619 212 SM
 DSP V34 modem (RL5T892): Includes the DTMF Receiver function
 DCR for MH, MR, MMR, and JBIG compression and decompression
FROM
 1Mbyte flash ROM for SG3 software storage and modem software storage
SDRAM
 4Mbyte DRAM shared between ECM buffer, line buffer, and working memory
AFE (Analog Front End)
 Analog processing
CODEC (COder-DECoder)
 A/D & D/A conversions for modem
REG
 Generates +3.3 V from the +5V from the FCU