TOPWAY

SMART LCD Command Manual

Protocol V5.04

URL:

www.topwaydisplay.com

www.topwaysz.com

Page: 19 of 19

4.4.18

N64_write ( 0x48 )

Seq

Cmd-code / Par-data

Descriptions

1

0x48

Write 64bit number to VP_N64

2

Addr3(MSB)

VP_N64 Address= 0x030000 ~ 0x03FFFF

(each VP_N64 = 8 byte)

(address value must be divisible by 8)

3

Addr2

4

Addr1

5

Addr0(LSB)

6

Data7(MSB)

the 64bit no. value write.

7

Data6

:

:

:

:

12

Data1

13

Data0(LSB)

Note.

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

4.4.19 N64_read ( 0x49 )

Seq

Cmd-code / Par-data

Descriptions

1

0x49

Read 64bit number from VP_N64

2

Addr3(MSB)

VP_N64 Address= 0x030000 ~ 0x03FFFF

(each VP_N64 = 8 byte)

(address value must be divisible by 8)

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

0x49

Command executed

3

rd

N64 value

Data7(MSB)

64 bit value

4

th

Data6

:

:

:

:

9

th

Data1

10

th

Data0(LSB)

11

th

Tail

0xCC

Communication packet tail

12

th

0x33

13

th

0xC3

14

th

0x3C

Note.

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

4.4.20 N64_fill ( 0x4A )

Seq

Cmd-code / Par-data

Descriptions

1

0x4A

Fill 64bit number to the VP_N64

2

Addr3(MSB)

VP_N64 Address= 0x030000 ~ 0x03FFFF

(each VP_N64 = 8 byte)

(address value must be divisible by 8)

3

Addr2

4

Addr1

5

Addr0(LSB)

6

Lengthh

the number of VP_N64 (including the start address) to be filled

Length = 1 ~ 8192

7

Lengthl

8

Data7(MSB)

the 64 bit no. value to fill

9

Data6

:

:

:

:

14

Data1

15

Data0(LSB)

Note.

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