Motorola MC9S12DT256 User Manual page 125

Conditions are shown in Table A-4 unless otherwise noted, C
Num C
1 P Frequency of operation (E-clock)
2 P Cycle time
3 D Pulse width, E low
4 D Pulse width, E high
5 D Address delay time
D Address valid time to E rise (PW
6
7 D Muxed address hold time
8 D Address hold to data valid
9 D Data hold to address
10 D Read data setup time
11 D Read data hold time
12 D Write data delay time
13 D Write data hold time
14 D Write data setup time
15 D Address access time
16 D E high access time
17 D Non-multiplexed address delay time
D Non-muxed address valid to E rise (PW
18
19 D Non-multiplexed address hold time
20 D Chip select delay time
21 D Chip select access time
22 D Chip select hold time
23 D Chip select negated time
24 D Read/write delay time
D Read/write valid time to E rise (PW
25
26 D Read/write hold time
27 D Low strobe delay time
D Low strobe valid time to E rise (PW
28
29 D Low strobe hold time
30 D NOACC strobe delay time
D NOACC valid time to E rise (PW
31
Table A-21 Expanded Bus Timing Characteristics
Rating
1
–t )
EL AD
1
(PW –t )
EH DDW
1
(t –t –t )
cyc AD DSR
1
(PW –t )
EH DSR
–t
EL
1
(t –t –t )
cyc CSD DSR
–t
EL RWD
–t
EL LSD
–t )
EL NOD
MC9S12DT256 Device User Guide — V03.07
= 50pF
LOAD
Symbol
f
o
t
cyc
PW
EL
PW
EH
t
AD
t
AV
t
MAH
t
AHDS
t
DHA
t
DSR
t
DHR
t
DDW
t
DHW
t
DSW
t
ACCA
t
ACCE
t
NAD
) t
NAD NAV
t
NAH
t
CSD
t
ACCS
t
CSH
t
CSN
t
RWD
) t
RWV
t
RWH
t
LSD
) t
LSV
t
LSH
t
NOD
t
NOV
Min Typ
0
40
19
19
11
2
7
2
13
0
2
12
19
6
15
2
11
2
8
14
2
14
2
14
Max Unit
25.0 MHz
ns
ns
ns
8 ns
ns
ns
ns
ns
ns
ns
7 ns
ns
ns
ns
ns
6 ns
ns
ns
16 ns
ns
ns
ns
7 ns
ns
ns
7 ns
ns
ns
7 ns
ns
125