Digi NS9750 Manual do Utilizador descarregar pdf (Página 69)

I2C timing

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I

2

C timing

I

2

C AC characteristics are measured with 10pF, unless otherwise noted.

Table 32 describes the values shown in the I

2

C timing diagram.

Standard mode Fast mode

Parm Description Min Max Min Max Unit

C1 iic_sda to iic_scl START hold time 4.0 0.6 μs

C2 iic_scl low period 4.7 1.3 μs

C3 iic_scl high period 4.7 1.3 μs

C4 iic_scl to iic_sda DATA hold time 0 0 μs

C5 iic_sda to iic_scl DATA setup time 250 100 ns

C6 iic_scl to iic_sda START setup time 4.7 0.6 μs

C7 iic_scl to iic_sda STOP setup time 4.0 0.6 μs

Table 32: I

2

C timing parameters

C4 C6 C7

C1 C2

C5

C3

iic_sda

iic_scl

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 87 88

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