eZ80L92 MCU
Product Specification
208
External I/O Read Timing
T
CLK
X
IN
T
1
ADDR[23:0]
T
3
DATA[7:0]
(input)
T
5
CSx
T
7
IORQ
T
9
RD
T
10
T
8
T
6
T
4
T
2
Figure 51. External I/O Read Timing
Table 131. External I/O Read Timing
20 MHz (ns)
Parameter
T
1
T
2
T
3
T
4
T
5
T
6
T
7
T
8
Abbreviation
Clock Rise to ADDR Valid Delay
Clock Rise to ADDR Hold Time
Input DATA Valid to Clock Rise Setup Time
Clock Rise to DATA Hold Time
Clock Rise to CSx Assertion Delay
Clock Rise to CSx Deassertion Delay
Clock Rise to IORQ Assertion Delay
Clock Rise to IORQ Deassertion Delay
—
2.2
0.4
1.3
2.6
2.4
2.6
2.3
Min
Max
6.9
—
—
—
10.8
8.8
7.0
6.3
—
2.2
0.4
1.3
2.6
2.4
2.6
2.3
50 MHz (ns)
Min.
Max.
6.9
—
—
—
10.8
8.8
7.0
6.3
PS013012-1004
PRELIMINARY
AC Characteristics
ZILOG [ ZILOG, INC. ]
