AT89C5132 Atmel Corporation, AT89C5132 Datasheet - Page 23

• Manufacturer Part Number: AT89C5132
• Manufacturer: Atmel Corporation

Specifications of AT89C5132

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-12C
• Max I/o Pins: 44
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Uart: 1
• Adc Channels: 2
• Adc Resolution (bits): 10
• Adc Speed (ksps): 22.7
• Sram (kbytes): 2.25
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 3.6
• Timers: 2
• Isp: UART/USB
• Watchdog: Yes

6.3.2.3
6.3.3
6.3.3.1
4173ES–USB–09/07
SPI Interface
Waveforms
Definition of Symbols
Figure 6-10. External IDE 16-bit Bus Cycle – Data Read Waveforms
Note:
Figure 6-11. External IDE 16-bit Bus Cycle – Data Write Waveforms
Note:
Table 12. SPI Interface Timing Symbol Definitions
D15:8 is written in DAT16H SFR.
D15:8 is the content of DAT16H SFR.
ALE
C
O
WR
I
P0
P2
ALE
RD
P0
P2
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
T
AVDV
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
RHDX
H
T
V
X
Z
L
T
RHDZ
WHQX
T
RHLH
T
WHLH
Conditions
AT89C5132
High
Low
Valid
No Longer Valid
Floating
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