AT83C51SND1C_03 ATMEL [ATMEL Corporation], AT83C51SND1C_03 Datasheet - Page 188

• Manufacturer Part Number: AT83C51SND1C_03
• Description: Single-Chip Flash Microcontroller with MP3 Decoder and Human Interface
• Manufacturer: ATMEL [ATMEL Corporation]

External IDE 16-bit Bus Cycles
Definition of Symbols
188
AT8xC51SND1C
Figure 143. External 8-bit Bus Cycle - Data Write Waveforms
Table 162. External IDE 16-bit Bus Cycles Timing Symbol Definitions
A
D
L
Q
R
W
ALE
WR
P0
P2
Signals
Address
Data In
ALE
Data Out
RD
WR
T
LHLL
T
AVLL
A7:0
T
T
LLAX
AVWL
T
LLWL
A15:8
T
H
L
V
X
Z
QVWH
Data Out
T
WLWH
D7:0
Conditions
T
WHQX
T
WHLH
High
Low
Valid
No Longer Valid
Floating
4109E–8051–06/03