CT8022 Datasheet, PDF (165/194 Pages) List of Unclassifed Manufacturers – VOIP/VON G.723.1, G279AB TRUESPEECH CO-PROCESSOR

Version: 1.18
PRELIMINARY/CONFIDENTIAL
TrueSpeech® Co-Processor
10.5 DMA Write to Host Transmit Data Buffer Access Port (Burst Mode)
HSTCSN
TXDREQ
TXDACKN
HSTWRN
HSTDB7-0
TX Ready
Buffer Address
IRQN
t8
t3
t1
t2
t4
t5
t9
t6
byte 1
byte 2
t7
byte 2N
Parameter
t1
t2
t3
t4
t5
t6
t7
t8
t9
Description
HSTWRN width
Recovery time between Host
accesses
HSTDB7-0 setup time before rising
edge of HSTWRN
HSTDB7-0 hold time after rising
edge of HSTWRN
TXDREQ de-asserted after final
rising edge of HSTWRN
Final rising edge of HSTWRN to TX
Ready cleared
Final rising edge of HSTWRN to
IRQN cleared
TXDACKN asserted before
HSTWRN
TXDACKN hold time after rising
edge of HSTWRN
Notes:
1. t5, t6, t7 may be negative.
Min
2 * MAINCLOCKP
2 * MAINCLOCKP
20 ns
5 ns
5 ns
2 ns
Max
MAINCLOCKP
MAINCLOCKP
MAINCLOCKP
CT8022A11AQC FW Revision 0118
DSP GROUP, INC., 3120 SCOTT BOULEVARD
165
SANTA CLARA, CA 95054 PH: 408 986 – 4300 FAX: 408 986 – 4490
All specifications are subject to change without prior notice.