AT83SND2C_14 Datasheet, PDF (224/242 Pages) ATMEL Corporation – MPEG I/II-Layer 3 Hardwired Decoder

24.3.3.3
Waveforms
Figure 24-17. External IDE 16-bit Bus Cycle - Data Read Waveforms
ALE
T_LHLL
T_LLRL
T_RLRH
T_RHLH
RD
T_AVLL
T_RLAZ
T_LLAX
T_RLDV
T_RHDZ
T_RHDX
P0
A7:0
D7:0
T_AVRL
T_AVDV
Data In
P2
A15:8
D15:8⁽¹⁾
Data In
Note: 1. D15:8 is written in DAT16H SFR.
Figure 24-18. External IDE 16-bit Bus Cycle - Data Write Waveforms
ALE
T_LHLL
T_LLWL
T_WLWH
T_WHLH
WR
T_AVLL
T_AVWL
T_LLAX
T_QVWH
T_WHQX
P0
A7:0
D7:0
Data Out
P2
A15:8
D15:8⁽¹⁾
Data Out
Note: 1. D15:8 is the content of DAT16H SFR.
24.4 SPI Interface
24.4.0.4
Definition of Symbols
Table 24-17. SPI Interface Timing Symbol Definitions
Signals
C
Clock
H
I
Data In
L
O
Data Out
V
X
Z
Conditions
High
Low
Valid
No Longer Valid
Floating
224 AT8xC51SND2C/MP3B
4341H–MP3–10/07