PCA8538UG(2014) 查看數據表（PDF） - NXP Semiconductors.

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PCA8538UG
(Rev.:2014)

Automotive 102 x 9 Chip-On-Glass LCD segment driver

NXP Semiconductors. 

NXP Semiconductors

PCA8538

Automotive 102 x 9 Chip-On-Glass LCD segment driver

8.7.3 Commands: Data-pointer-X and Data-pointer-Y

The Data-pointer-X and Data-pointer-Y commands define the display RAM address where

the following display data will be sent to.

Table 28. Data-pointer-X and Data-pointer-Y - set data pointer command bit description

For further information about the RAM, see Section 8.14 on page 55.

Bit

Symbol

Value

Description

Data-pointer-X-MSB: PX[6:4]

-

R/W

0

fixed value

-

RS[1:0]

00

fixed value

7 to 3 -

1000 0

fixed value

2 to 0 PX[6:4]

000[1] to 111 3-bit binary value

Data-pointer-X-LSB: PX[3:0]

-

R/W

0

fixed value

-

RS[1:0]

00

fixed value

7 to 4 -

1001

fixed value

3 to 0 PX[3:0]

0000[1] to 1111 4-bit binary value

Data-pointer-Y: PY0

-

R/W

0

fixed value

-

RS[1:0]

00

fixed value

7 to 1 -

1010 000

fixed value

0

PY0

0[1] to 1

1-bit binary value

[1] Default value.

8.8 Start-up and shut-down

8.8.1 Power-On Reset (POR)

At power-on, the PCA8538 resets to the following starting conditions:

1. All backplane and segment outputs are set to VSS1.

2. Selected drive mode is: 1:9 with 1⁄4 bias.

3. Input and output bank selectors are reset.

4. The interface is initialized.

5. The data pointer is cleared (set logic 0).

6. The internal oscillator is disabled.

7. Temperature measurement is disabled.

8. Temperature filter is disabled.

9. The internal VLCD voltage generation is disabled. The charge pump is switched off.

10. The VLCD temperature compensation is disabled.

11. The display is disabled.

The reset state is as shown in Table 29.

PCA8538

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 4 — 26 September 2014

© NXP Semiconductors N.V. 2014. All rights reserved.

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