Auto Page CPX-3600 Specifikace Strana 162

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I2C bus interface (I2C) ST72321xx-Auto
162/243 Doc ID 13829 Rev 1
Figure 68. Transfer sequencing
7-bit Slave receiver:
7-bit Slave transmitter:
7-bit Master receiver:
7-bit Master transmitter:
10-bit Slave receiver:
10-bit Slave transmitter:
10-bit Master transmitter:
10-bit Master receiver:
S Address A Data1 A Data2 A
.....
DataN A P
EV1 EV2 EV2 EV2 EV4
S Address A Data1 A Data2 A
.....
DataN NA P
EV1 EV3 EV3 EV3 EV3-1 EV4
S Address A Data1 A Data2 A
.....
DataN NA P
EV5 EV6 EV7 EV7 EV7
S Address A Data1 A Data2 A
.....
DataN A P
EV5 EV6 EV8 EV8 EV8 EV8
S Header A Address A Data1 A
.....
DataN A P
EV1 EV2 EV2 EV4
S
r
Header A Data1 A
....
.
DataN A P
EV1 EV3 EV3 EV3-1 EV4
S Header A Address A Data1 A
.....
DataN A P
EV5 EV9 EV6 EV8 EV8 EV8
S
r
Header A Data1 A
.....
DataN A P
EV5 EV6 EV7 EV7
Legend:
S = Start, Sr = Repeated Start, P = Stop, A = Acknowledge, NA = Non-acknowledge, EVx = Event (with interrupt if ITE = 1)
EV1: EVF = 1, ADSL = 1, cleared by reading SR1 register.
EV2: EVF = 1, BTF = 1, cleared by reading SR1 register followed by reading DR register.
EV3: EVF = 1, BTF = 1, cleared by reading SR1 register followed by writing DR register.
EV3-1: EVF = 1, AF = 1, BTF = 1; AF is cleared by reading SR1 register. BTF is cleared by releasing the lines (STOP = 1, STOP = 0) or
by writing DR register (DR = FFh). Note: If lines are released by STOP = 1, STOP = 0, the subsequent EV4 is not seen.
EV4: EVF = 1, STOPF = 1, cleared by reading SR2 register.
EV5: EVF = 1, SB = 1, cleared by reading SR1 register followed by writing DR register.
EV6: EVF = 1, cleared by reading SR1 register followed by writing CR register (for example PE = 1).
EV7: EVF = 1, BTF = 1, cleared by reading SR1 register followed by reading DR register.
EV8: EVF = 1, BTF = 1, cleared by reading SR1 register followed by writing DR register.
EV9: EVF = 1, ADD10 = 1, cleared by reading SR1 register followed by writing DR register.
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