Version: 1.18
PRELIMINARY/CONFIDENTIAL
TrueSpeech® Co-Processor
2.2.2
CT8022 16-Bit Combined Program-Data (Download) SRAM Connection
CREADN
DWRN
RD
WR
CS
32K x 8 15ns
SRAM
ADDR0-14
MDB0-7
ADDRESS 0-14
DATA 0-7
RD
WR
CS
CT8022
32K x 8 15ns
SRAM
ADDRESS 0-14
DATA 0-7
MDB8-15
Figure 2-3:
External Combined Program-Data SRAM Connection
This is the extended external memory configuration showing the CT8022 connected to two external combined
program-data SRAM chips. This configuration supports download of external software coder modules to the
combined program-data memory. Use this configuration only if you intend to use the CT8022 with external software
coder modules such as TrueSpeech 8.5.
Note: The BSEL signal is not used in 16-bit wide memory configurations.
CT8022A11AQC FW Revision 0118 DSP GROUP, INC., 3120 SCOTT BOULEVARD
SANTA CLARA, CA 95054 PH: 408 986 – 4300 FAX: 408 986 – 4490
17
All specifications are subject to change without prior notice.
ETC [ ETC ]
