TrueSpeech® Co-Processor
PRELIMINARY/CONFIDENTIAL
Version: 1.18
4.3
CT8022 Host Connection With External DMA Controller
VCC
INT
RD
HSTRD
HSTWR
RXDACK
RXDREQ
IRQ
WR
HOST
HSTDB7-0
Data Bus
CT8022
HSTAB3-0
TXDACK
Address Bus
HOLD
HSTCS
TXDREQ
HOLDA
SRAMs
Address
Decode
CODEC(
CS
RD
RD
CS
WR
WR
RAM
DMA Controller
Data Bus
Data Bus
Address Bus
Address Bus
DMA Ch. 0 REQ
ACK
DMA Ch. 1 REQ
ACK
Figure 4-1:
CT8022 Connection to Host and External DMA Controller
26
DSP GROUP, INC., 3120 SCOTT BOULEVARD CT8022A11AQC FW Revision 0118
SANTA CLARA, CA 95054 PH: 408 986 – 4300 FAX: 408 986 – 4490
All specifications are subject to change without prior notice.
ETC [ ETC ]
