AS8228 datasheet(51/123 Pages) AMSCO

51 / 123 page

Data Sheet AS8218 / AS8228

Revision 3.0, 31-May-06

Page 51 of 123

The complete register is organized in bytes according to following table:

Address

Reset Value

Description

reg1[7:0]

9200h

00h

reg1[15:8]

9201h

00h

reg1[23:16]

9202h

00h

reg1[31:24]

9203h

00h

reg1[39:32]

9204h

00h

reg1[47:40]

9205h

00h

reg1[55:48]

9206h

00h

reg1[63:56]

9207h

00h

reg1[71:64]

9208h

00h

reg1[79:72]

9209h

00h

reg1[87:80]

920Ah

00h

reg1[95:88]

920Bh

00h

AS8228 only

reg2[7:0]

9210h

00h

reg2[15:8]

9211h

00h

reg2[23:16]

9212h

00h

reg2[31:24]

9213h

00h

reg2[39:32]

9214h

00h

reg2[47:40]

9215h

00h

reg2[55:48]

9216h

00h

reg2[63:56]

9217h

00h

reg2[71:64]

9218h

00h

reg2[79:72]

9219h

00h

reg2[87:80]

921Ah

00h

reg2[95:88]

921Bh

00h

AS8228 only

use_reg

921Eh

00h

Bit 0: Selects register to be used.

0: Data Register 1

1: Data Register 2

selvlcd[2:0]

921Fh

00h

Select VLCD level. See table in LCD Voltage Select

lcdd_pd

9220h

01h

Bit 0: Power-down of the LCDD analog part.

0: Display on

1: Display off

Notes:

1) Unused registers will simply be ignored.

2) All the registers are write only. Read operations always return 0.

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