HT1623 datasheet(9/15 Pages) HOLTEK

Part #	HT1623

Description	RAM Mapping 488 LCD Controller for I/O MCU

PDF	15 Pages

Scroll/Zoom	100%

Manufacturer	HOLTEK [Holtek Semiconductor Inc]

Direct Link	http://www.holtek.com

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9 / 15 page

HT1623

Rev. 1.50

June 17, 2009

PATENTED

The following are the data mode ID and the command

mode ID:

Operation

Mode

READ

Data

1 1 0

WRITE

Data

1 0 1

READ-MODIFY-WRITE

Data

1 0 1

COMMAND

Command

1 0 0

If successive commands have been issued, the com-

mand mode ID can be omitted. While the system is op-

erating in the non-successive command or the

non-successive address data mode, the CS pin should

be set to

²1² and the previous operation mode will be re-

set also. The CS pin returns to

²0², a new operation

mode ID should be issued first.

W D T E N / D I S

I R Q E N / D I S

C K

C L R W D T

C l o c k S o u r c e

/ 4

/ 2 5 6

T i m e B a s e

C L R T i m e r

I R Q

W D T

V D D

T I M E R E N / D I S

Timer and WDT Configurations

Name

Command Code

Function

TONE OFF

0000-1000-X

Turn-off tone output

TONE 4K

010X-XXXX-X

Turn-on tone output, tone frequency is 4kHz

TONE 2K

0110-XXXX-X

Turn-on tone output, tone frequency is 2kHz

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