Figure 16. Address Assignment Each device is re" />
參數(shù)資料
型號(hào): IDT82V3202NLG8
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 57/117頁
文件大小: 0K
描述: IC PLL WAN EBU SGL 68-VFQFPN
標(biāo)準(zhǔn)包裝: 2,500
類型: 時(shí)鐘/頻率發(fā)生器,多路復(fù)用器
PLL:
主要目的: 以太網(wǎng),SONET/SDH,Stratum
輸入: CMOS
輸出: CMOS,LVDS,PECL
電路數(shù): 1
比率 - 輸入:輸出: 2:2
差分 - 輸入:輸出: 無/是
頻率 - 最大: 622.08MHz
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 68-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 68-VFQFPN(10x10)
包裝: 帶卷 (TR)
其它名稱: 82V3202NLG8
IDT82V3202
EBU WAN PLL
I2C Programming Interface
44
September 11, 2009
4.1.2
ADDRESS ASSIGNMENT
Figure 16. Address Assignment
Each device is recognized by a unique slave address. The slave
addressing procedure for the I2C-bus is such that the first byte after the
START condition usually determines which slave device will be selected
by the Master device. In this specification, the 4 MSB bits of the address
byte are fixed and the 3 LSB bits are decided by address input pins
AD[2:0], as shown in Figure 16.
The R/W bit is used as a data transfer direction bit which is deter-
mined by the Master device. A ‘0’ on this bit indicates a transmission
(Write) to registers and a ‘1’ indicates a request for data (Read) from the
registers.
4.2
TIMING DEFINITION
The timing of I2C-bus is as shown in Figure 17.
Figure 17. Timing Definition of I2C-bus
A6
A5
A4
A3
A2
A1
A0
R/W
AD2
AD1
AD0
1/0
11
00
SDA
SCL
t
LOW
t
f
t
HD: STA
t
HD: DAT
t
HIGH
t
SU: DAT
t
f
t
SU: STA
t
HD: STA
t
SP
t
SU: STO
t
BUF
S
Sr
PS
t
r
t
r
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