参数资料
型号: AD9524/PCBZ
厂商: Analog Devices Inc
文件页数: 22/56页
文件大小: 0K
描述: BOARD EVAL FOR AD9524
设计资源: AD9524 Schematic
AD9524 BOM
AD9524 Gerber Files
标准包装: 1
主要目的: 计时,时钟发生器
嵌入式:
已用 IC / 零件: AD9524
主要属性: USB 供电或外部电源
次要属性: 状态 LED
已供物品:
配用: AD9524BCPZ-ND - IC INTEGER-N CLCK GEN 48LFCSP
Data Sheet
AD9524
Rev. E | Page 29 of 56
Data Transfer Format
Send byte format. The send byte protocol is used to set up the register address for subsequent commands.
S
Slave Address
W
A
RAM Address High Byte
A
RAM Address Low Byte
A
P
Write byte format. The write byte protocol is used to write a register address to the RAM, starting from the specified RAM address.
S
Slave Address
W
A
RAM Address
High Byte
A
RAM Address
Low Byte
A
RAM
Data 0
A
RAM
Data 1
A
RAM
Data 2
A
P
Receive byte format. The receive byte protocol is used to read the data byte(s) from the RAM, starting from the current address.
S
Slave Address
R
A
RAM Data 0
A
RAM Data 1
A
RAM Data 2
A
P
Read byte format. The combined format of the send byte and the receive byte.
S
Slave
Address
W
A
RAM Address
High Byte
A
RAM Address
Low Byte
A
Sr
Slave
Address
R
A
RAM
Data 0
A
RAM
Data 1
A
RAM
Data 2
A
P
IC Serial Port Timing
SDA
SCL
S
Sr
P
S
tFALL
tSET; DAT
tLOW
tRISE
tHLD; STR
tHLD; DAT
tHIGH
tFALL
tSET; STR
tHLD; STR
tSPIKE
tSET; STP
tRISE
tIDLE
09081-
165
Figure 35. IC Serial Port Timing
Table 24. I2C Timing Definitions
Parameter
Description
fI2C
IC clock frequency
tIDLE
Bus idle time between stop and start conditions
tHLD; STR
Hold time for repeated start condition
tSET; STR
Setup time for repeated start condition
tSET; STP
Setup time for stop condition
tHLD; DAT
Hold time for data
tSET; DAT
Setup time for data
tLOW
Duration of SCL clock low
tHIGH
Duration of SCL clock high
tRISE
SCL/SDA rise time
tFALL
SCL/SDA fall time
tSPIKE
Voltage spike pulse width that must be suppressed by the input filter
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