TOPWAY

SMART LCD Command Manual

Protocol V5.04

URL:

www.topwaydisplay.com

www.topwaysz.com

Page: 18 of 19

4.4.15 N32_write ( 0x44 )

Seq

Cmd-code / Par-data

Descriptions

1

0x44

Write 32bit number to VP_N32

2

Addr3(MSB)

VP_N32 Address = 0x020000 ~ 0x02FFFF

(each VP_N32 = 4 byte)

(address value must be divisible by 4)

3

Addr2

4

Addr1

5

Addr0(LSB)

6

Data3(MSB)

the 32 bit no. value write.

7

Data2

8

Data1

9

Data0(LSB)

Note.

*1. Command should be transferred in communication packet structure (see Communication Packet Structure Section for details)

4.4.16 N32_read ( 0x45 )

Seq

Cmd-code / Par-data

Descriptions

1

0x45

Read 32bit number from VP_N32

2

Addr3(MSB)

VP_N32 Address = 0x020000 ~ 0x02FFFF

(each VP_N32 = 4 byte)

(address value must be divisible by 4)

3

Addr2

4

Addr1

5

Addr0(LSB)

Note.

*1. Command should be transferred in communication packet structure (see Communication Packet Structure Section for details

Response code:

Seq.

Content

Byte in Hex

Descriptions

1

st

Header

0xAA

Communication packet header

2

nd

Command

0x45

Command executed

3

rd

N32 value

Data3(MSB)

32 bit value

4

th

Data2

5

th

Data1

6

th

Data0(LSB)

7

th

Tail

0xCC

Communication packet tail

8

th

0x33

9

th

0xC3

10

th

0x3C

Note.

*1. The Response code with communication packet format (see Communication Packet Structure Section for details)

4.4.17 N32_fill ( 0x47 )

Seq

Cmd-code / Par-data

Descriptions

1

0x47

Fill 32bit number to the VP_N32

2

Addr3(MSB)

VP_N32 Address = 0x020000 ~ 0x02FFFF

(each VP_N32 = 4 byte)

(address value must be divisible by 4)

3

Addr2

4

Addr1

5

Addr0(LSB)

6

Lengthh

the number of VP_N32 (including the start address) to be filled

Length = 1 ~ 16384

7

Lengthl

8

Data3(MSB)

the 32 bit no. value to fill

9

Data2

10

Data1

11

Data0(LSB)

Note.

*1. Command should be transferred in communication packet structure (see Communication Packet Structure Section for details)