ADUC7122 Analog Devices, ADUC7122 Datasheet - Page 12

• 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

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