ds96-039wdsp ETC-unknow, ds96-039wdsp Datasheet - Page 96

• Manufacturer Part Number: ds96-039wdsp
• Description: Clarification Serial Control Register Description Dsp1620/27/28/29 Devices
• Manufacturer: ETC-unknow

February 1997
10 Timing Characteristics for 2.7 V Operation
* W = number of wait-states.
Table 80. Timing Characteristics for External Memory Access
Table 81. Timing Requirements for External Memory Read (EROM, ERAMHI, IO, ERAMLO)
Lucent Technologies Inc.
Abbreviated
ENABLE
Reference
CKO
t129
t130
t150
Abbreviated Reference
DB
AB
V
V
V
V
V
V
V
V
OH
OH
OH
OL
OL
OL
IH
IL
t127
t128
Read Data Setup (valid to enable high)
Read Data Hold (enable high to hold)
External Memory Access Time (valid to valid)
Figure 19. External Memory Data Read Timing Diagram
t128
Parameter
Enable Width (low to high)
Address Valid (enable low to valid)
(MWAIT = 0x2222)
t150
t127
W* = 2
Parameter
t129
READ ADDRESS
Min
(continued)
15
—
0
READ DATA
19.2 ns
T(1 + W) – 15
DSP1628 Digital Signal Processor
Max
—
—
T(1 + W) – 1.5
t130
Min
—
Min
13
—
0
12.5 ns
T(1 + W) – 14
Max
2.5
—
Max
—
—
5-4021 (C).a
Unit
ns
ns
Unit
ns
ns
ns
94