ADUC7122 Analog Devices, ADUC7122 Datasheet - Page 13

• Manufacturer Part Number: ADUC7122
• Description: Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI® MCU
• Manufacturer: Analog Devices

Specifications of ADUC7122

• Mcu Core: ARM7 TDMI
• Mcu Speed (mips): 40
• Sram (bytes): 8192Bytes
• Gpio Pins: 32
• Adc # Channels: 13

Table 7. SPI Slave Mode Timing (SPICPH = 0)
Parameter
t
t
t
t
t
t
t
t
t
t
t
t
1
CS
SL
SH
DAV
DSU
DHD
DF
DR
SR
SF
DOCS
SFS
t
UCLK
= 23.9 ns. It corresponds to the 41.78 MHz internal clock from the PLL before the clock divider.
(POLARITY = 1)
(POLARITY = 0)
Description
CS to SCLOCK edge
SCLOCK low pulse width
SCLOCK high pulse width
Data output valid after SCLOCK edge
Data input setup time before SCLOCK edge
Data input hold time after SCLOCK edge
Data output fall time
Data output rise time
SCLOCK rise time
SCLOCK fall time
Data output valid after CS edge
CS high after SCLOCK edge
SCLOCK
SCLOCK
MOSI
MISO
CS
t
DOCS
t
CS
t
DSU
MSB IN
1
1
MSB
t
DHD
t
SH
Figure 6. SPI Slave Mode Timing (SPICPH = 0)
t
DF
t
DAV
1
t
SL
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1
t
DR
BITS 6 TO 1
BITS 6 TO 1
Min
200
1 × t
2 × t
0
UCLK
UCLK
LSB IN
t
SR
LSB
Typ
(SPIDIV + 1) × t
(SPIDIV + 1) × t
5
5
5
5
t
SF
t
SFS
UCLK
UCLK
Max
25
12.5
12.5
12.5
12.5
25
ADuC7122
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns