FS98O21 datasheet(85/136 Pages) FORTUNE

85 / 136 page

FS98O21

Rev. 1.7

85/136

Table 9-1 I2C module register table

Address

Name

Referenced

Section

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3 Bit 2 Bit 1 Bit 0

Value on Power

on Reset

57h

I2CCON

WCOL

I2COV

I2CEN

CKP

0001uuuu

58h

I2CSTA

uu0000u0

59h

I2CADD

I2CADD [7:0]

00000000

5Ah

I2CBUF

I2CBUF [7:0]

00000000

property

R/W-0

R/W-1

U-X

I2CCON

WCOL

I2COV

I2CEN

CKP

Bit7

Bit0

Bit 7

WCOL

: Write collision detector register flag.

1 = The I2CBUF register is written while it is still transmitting the previous data.

0 = No write collision is happened. This register should be clear in software.

Bit 6

I2COV

: Receive overflow detector register flag

1 = A byte is received while theI2CBUF is still holding the previous data.

0 = No receive overflow is happened. This register should be clear in software

Bit 5

I2CEN

: I2C module enable flag

1 = I2C module is enabled.

0 = I2C module is disabled.

Bit 4

CKP

: SCK signal control register

1 = SCK pin is enabled.

0 = SCK pin is disabled and hold to low.

property

R = Readable bit

W = Writable bit

U = unimplemented bit

- n = Value at Power On

Reset

‘1’ = Bit is Set

‘0’ = Bit is Cleared

Bit

unknown

FS98O21 Datasheet(PDF) 85 Page - Fortune Semiconductor Corp.

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