Oracle CPU-56T Manuel d'utilisateur télécharger pdf (Page 135)

System Configuration Registers Maps and Registers

SPARC/CPU−56T 135

Address: 1FF.F160.01FF

Table 49: I2C 2 Register

Bit Name Description Defaulta Access

0 I

C−DATAIN2 This register bit reflects the current status of the I

C−2

data line.

0: I

C−2 dataline is 0.

1: I

C−2 dataline is 1.

− r

C−CLK2 This bit corresponds to the I

C clock line and must be

set by software to toggle the I

C clock.

0: I

C−2 clock is 0.

1: I

C−2 clock is 1.

−w

C−DATAOUT2 This bit is used by software to write to the I

dataline.a

0: The I

C−2 dataline is driven low.

1: The I

C−2 dataline is driven high by an external

pull−up.

1 r/w

7..3 − Reserved 00000

r/w

1 2 ... 130 131 132 133 134 135 136 137 138 139 140 ... 144 145

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Oracle CPU-56T Manuel d'utilisateur Page 135