TS68302MAB Atmel Corporation, TS68302MAB Datasheet - Page 25

• Manufacturer Part Number: TS68302MAB
• Description: 16-bit Communication Controller, 16-20 MHz
• Manufacturer: Atmel Corporation

Table 13. AC Electrical Specifications - Chip-select Timing Internal Master
Notes:
Figure 17. Internal Master Chip-select Timing Diagram
Table 14. AC Electrical Specifications - Chip-select Timing External Master
Notes:
2117A–HIREL–11/02
Num.
Num.
176
177
178
154
160
161
162
163
164
165
167
168
169
1. For loading capacitance less than or equal to 50 pF, subtract 4 ns from the maximum value given.
2. This specification is valid only when the ADCE or WPVE bits in the SCR are set.
3. See Figure 17.
4. Specs 172-178 do not have diagrams. However, similar diagrams for AS are shown as 25-11-13-14-17-20A and 29.
1. The minimum value must be met to guarantee write protection operation.
2. This specification is valid when the DCE or WPVE bits in the SCR are set.
3. Also applies after a timeout of the hardware watchdog.
4. See Figure 18
IACK1,IACK6,
(OUTPUT)
(OUTPUT)
(OUTPUT)
(OUTPUT)
CS0-CS3
DTACK
IACK7
BERR
CLKO
Symbol
Symbol
t
t
t
t
t
t
t
t
ASHDTKH
ASHBERH
t
t
ASLDTKL
ASLBERL
CSARWL
t
CSNRWI
ASHCSH
RWVASL
CLDTKL
ASLCSL
t
t
CSNDII
AVASL
ASHAI
S0
Parameter
CS negated to R/W invalid
CS asserted to R/W low (write)
CS negated to data in invalid (hold time on read)
Parameter
Clock low to DTACK low (1-6 wait states)
AS low to CS low
AS high to CS high
Address valid to AS Low
R/W valid to AS Low
AS negated to Address hold time
AS low to DTACK low (0 wait state)
AS high to DTACK high
AS low to BERR low
AS high to BERR high
S1
S2
S3
156
153
150
S4
(2)
(1)
(2)(3)
S5
(4)
151
155
157
S6
(4)
S7
S0
158
152
(4)
(3)
(4)
f = 16.67 MHz (Continued)
f = 16.67 MHz
Sw
Sw
Min
Min
10
15
15
0
0
S4
154
S5
S6
Max
Max
10
30
30
30
45
30
30
30
S7
TS68302
S0
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
25