at85c51snd3b ATMEL Corporation, at85c51snd3b Datasheet - Page 253

• Manufacturer Part Number: at85c51snd3b
• Description: Single-chip Digital Audio Decoder - Encoder With Usb 2.0 Interface
• Manufacturer: ATMEL Corporation

PSI Interface
Definition of Symbols
7632C–MP3–11/06
Figure 147. LCD 6800 Write Cycle Waveform
Figure 148. LCD 6800 Read Cycle Waveform
Table 285. PSI Interface Timing Symbol Definitions
D
Q
A
R
W
E
LWR/LRW
LRD/LRW
LRD/LDE
LRD/LDE
LA0/LRS
LA0/LRS
LD7:0
LD7:0
LCS
LCS
Signals
SD7:0 In
SD7:0 Out
SA0
SRD
SWR
SCS
t
t
AVEH
AVEH
t
t
AVDV
SLDV
t
EHDV
t
SLEL
t
t
t
EHEL
QVEL
EHEL
Data
Data
H
L
V
X
Z
t
t
t
ELQX
ELSH
ELAX
t
t
ELDX
ELDZ
t
AT85C51SND3B
SHDZ
Conditions
High
Low
Valid
No Longer Valid
Floating
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