AT83C51SND1C_03 ATMEL [ATMEL Corporation], AT83C51SND1C_03 Datasheet - Page 190

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

Waveforms
SPI Interface
Definition of Symbols
190
AT8xC51SND1C
Figure 144. External IDE 16-bit Bus Cycle - Data Read Waveforms
Note:
Figure 145. External IDE 16-bit Bus Cycle - Data Write Waveforms
Note:
Table 165. SPI Interface Timing Symbol Definitions
C
I
O
ALE
ALE
WR
RD
P0
P2
P0
P2
1. D15:8 is written in DAT16H SFR.
1. D15:8 is the content of DAT16H SFR.
Signals
Clock
Data In
Data Out
T
T
LHLL
LHLL
T
T
AVLL
AVLL
A15:8
A15:8
A7:0
A7:0
T
AVRL
T
T
T
T
T
LLAX
LLAX
T
RLAZ
AVWL
LLRL
AVDV
T
LLWL
T
RLDV
T
RLRH
T
QVWH
Data Out
Data Out
T
D15:8
H
L
V
X
Z
WLWH
D7:0
D15:8
Data In
Data In
D7:0
(1)
(1)
T
RHDX
T
RHDZ
T
T
Conditions
WHQX
RHLH
T
WHLH
High
Low
Valid
No Longer Valid
Floating
4109E–8051–06/03