TTP259-ASFN datasheet(41/81 Pages) TONTEK

41 / 81 page

Preliminary

TTP259

TonTouch

2015/05/25

Page 41 of 81

Ver: 1.1

P-6: IIC Module

IIC is a 2-wire, bi-directional serial bus, which provides a simple, efficient

way for data exchange between devices. This two-wire bus minimizes the

interconnection between devices and eliminates the need for address

decoders.

IIC CONTROL

Every IIC device must have independent slave address. User can use

IICCON1<3:1> (ADR<2:0>) to select one independent slave address, the

map address reference follow table.

MODE

ADR2

ADR1

ADR0

IIC device address 7-bit

Normal

mode

101 0000 (50H)

101 0001 (51H)

101 0010 (52H)

101 0011 (53H)

101 0100 (54H)

101 0101 (55H)

101 0110 (56H)

101 0111 (57H)

MODE

ADR2

ADR1

ADR0

IIC device address 8-bit

Fast read

mode

1010 0001 (A1H)

1010 0011 (A3H)

1010 0101 (A5H)

1010 0111 (A7H)

1010 1001 (A9H)

1010 1011 (ABH)

1010 1101 (ADH)

1010 1111 (AFH)

Table: IIC address mapping table

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