peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 366

• Manufacturer Part Number: peb20560
• Description: Dsp Oriented Pbx Controller Doc
• Manufacturer: Infineon Technologies Corporation

7.9
Table 7-6 Bus Interface Timing
Parameter
RD-pulse width
RD-control interval
Data output delay from RD
Data float delay from RD
DMA-request delay
WR-pulse width
WR-control interval
Data set-up time to WR
Data hold time from WR
ALE-pulse width
Address set-up time to ALE
Address hold time from ALE
ALE set-up time to WR, RD
CS set-up time to WR, RD
CS hold-time from WR, RD
Figure 7-3
Semiconductor Group
AD7 - AD0
A9 - A8
ALE
CS
RD
WR
Microprocessor Interface Timing
Address Timing
t
AL
t
AA
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RR
RI
RD
DF
DRH
WW
DW
WD
AA
AL
LA
AL
CS
SC
WI
S
t
LA
t
t
CS
ALS
7-5
80
50
5
30
40
30
15
15
10
8
8
5
5
min.
Limit Values
Electrical Characteristics
65
25
75
t
SC
max.
ITT10117
PEB 20560
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2003-08