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AS1119

Datasheet - Regi s t er Description

Open/Short Status Register (0x0C)

This is a read only register. Within this register the result of the open/short test can be read out. It’s also stated if the test is completed or still run-

ning. The default setting of this register is 0x00.

AS1119 Status Register (0x0D)

This is a read only register. From this register the actual status of the AS1119 can be read out. The default setting of this register is 0x00. After an

read command the bits 5:4 are set to ‘0’ again automatically.

Table 26. Open/Short Status Register Format

0x0C Open/Short Status Register

Bit

Bit Name

Default

Access

Bit Description

7-

0

n/a

6

status

0

R

0: no test

1: test ongoing

5

short test result

Matrix C

0

R

0: no error detected

1: short in Matrix C

4

short test result

Matrix B

0

R

0: no error detected

1: short in Matrix B

3

short test result

Matrix A

0

R

0: no error detected

1: short in Matrix A

2

open test result

Matrix C

0

R

0: no error detected

1: open in Matrix C

1

open test result

Matrix B

0

R

0: no error detected

1: open in Matrix B

0

open test result

Matrix A

0

R

0: no error detected

1: open in Matrix A

Table 27. AS1119 Status Register Register Format

0x0D AS1119 Status Register

Bit

Bit Name

Default

Access

Bit Description

7-

0

n/a

6

Movie status

R

0: no movie is playing

1: one movie is playing

5:4

Interrupt

00

R

00: no Interrupt triggered

01: POR triggered an interrupt

1

10: I²C monitor triggered an interrupt

11: both (I²C and POR) triggered an interrupt

1. The power-on reset is part of the start sequence, hence after start-up this bit is also set.

3:0

actual displayed frame

000

R

000: frame 0

001: frame 1

010: frame 2

011: frame 3

100: frame 4

101: frame 5