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9DB433AFILF データシート(PDF) 10 Page - Renesas Technology Corp

部品番号 9DB433AFILF
部品情報  FOUR OUTPUT DIFFERENTIAL BUFFER FOR PCIE GEN1–3
PDF  18 Pages
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メーカー  RENESAS [Renesas Technology Corp]
ホームページ  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

9DB433AFILF データシート(HTML) 10 Page - Renesas Technology Corp

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9DB433
FOUR OUTPUT DIFFERENTIAL BUFFER FOR PCIE GEN1–3
IDT®
FOUR OUTPUT DIFFERENTIAL BUFFER FOR PCIE GEN1–3
10
9DB433
MAY 25, 2018
General SMBus Serial Interface Information for 9DB433
How to Write
• Controller (host) sends a start bit
• Controller (host) sends the write address
• IDT clock will acknowledge
• Controller (host) sends the beginning byte location = N
• IDT clock will acknowledge
• Controller (host) sends the byte count = X
• IDT clock will acknowledge
• Controller (host) starts sending Byte N through Byte
N+X-1
• IDT clock will acknowledge each byte one at a time
• Controller (host) sends a Stop bit
*Assuming SMB_ADR_tri is at mid-level
How to Read
• Controller (host) will send a start bit
• Controller (host) sends the write address
• IDT clock will acknowledge
• Controller (host) sends the beginning byte location = N
• IDT clock will acknowledge
• Controller (host) will send a separate start bit
• Controller (host) sends the read address
• IDT clock will acknowledge
• IDT clock will send the data byte count = X
• IDT clock sends Byte N+X-1
• IDT clock sends Byte 0 through Byte X (if X(H) was
written to Byte 8)
• Controller (host) will need to acknowledge each byte
• Controller (host) will send a not acknowledge bit
• Controller (host) will send a stop bit
Index Block Write Operation
Controller (Host)
IDT (Slave/Receiver)
TstarT bit
Slave Address
WR
WRite
ACK
Beginning Byte = N
ACK
Data Byte Count = X
ACK
Beginning Byte N
ACK
O
O
O
O
O
O
Byte N + X - 1
ACK
PstoP bit
Read Address
Write Address
DD*(H)
DC*(H)
Index Block Read Operation
Controller (Host)
IDT (Slave/Receiver)
TstarT bit
Slave Address
WR
WRite
ACK
Beginning Byte = N
ACK
RT
Repeat starT
Slave Address
RD
ReaD
ACK
Data Byte Count=X
ACK
Beginning Byte N
ACK
O
O
O
O
O
O
Byte N + X - 1
N
Not acknowledge
PstoP bit



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