at83c5132 ATMEL Corporation, at83c5132 Datasheet - Page 23

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

Waveforms
SPI Interface
Definition of Symbols
4173CS–USB–07/04
Figure 3. External IDE 16-bit Bus Cycle – Data Read Waveforms
Note:
Figure 4. External IDE 16-bit Bus Cycle – Data Write Waveforms
Note:
Table 7. SPI Interface Timing Symbol Definitions
ALE
WR
P0
P2
ALE
RD
P0
P2
D15:8 is written in DAT16H SFR.
D15:8 is the content of DAT16H SFR.
C
O
I
Signals
Clock
Data In
Data Out
T
LHLL
T
T
AVLL
LHLL
T
AVLL
A15:8
A7:0
A15:8
A7:0
T
T
AVRL
T
LLAX
T
AVWL
T
T
LLAX
T
RLAZ
LLRL
AVDV
T
LLWL
T
RLDV
T
RLRH
T
QVWH
Data Out
Data Out
T
D15:81
WLWH
D7:0
Data In
D15:81
Data In
D7:0
T
H
V
X
Z
L
RHDX
T
T
RHDZ
WHQX
T
Conditions
AT89C5132
RHLH
T
WHLH
High
Low
Valid
No Longer Valid
Floating
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