at83c5132 ATMEL Corporation, at83c5132 Datasheet - Page 21

• Manufacturer Part Number: at83c5132
• Description: Usb Microcontroller With 64k Bytes Flash Memory
• Manufacturer: ATMEL Corporation

External IDE 16-bit Bus Cycles
Definition of Symbols
Timings
4173CS–USB–07/04
Figure 2. External 8-bit Bus Cycle – Data Write Waveforms
Table 4. External IDE 16-bit Bus Cycles Timing Symbol Definitions
Test conditions: capacitive load on all pins = 50 pF.
ALE
WR
P0
P2
W
D
Q
R
A
L
Signals
Address
Data In
ALE
Data Out
RD
WR
T
LHLL
T
AVLL
A7:0
T
T
LLAX
AVWL
T
LLWL
A15:8
T
QVWH
Data Out
T
WLWH
D7:0
H
V
X
Z
L
T
WHQX
Conditions
AT89C5132
T
WHLH
High
Low
Valid
No Longer Valid
Floating
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