Sharp JW-20FLT ユーザーズマニュアル

9-17

Chapter 9: Message transfers

Command

 page 9-

14.

+2000

Header (40 bytes)

- Normally, all 40 bytes to 00

(H)

.

When you want to communicate crossover
two layers including Ethernet, enter
expansion header.

-

[5] Two layer communication with Ethernet.

to

+2047

+2050

c-ID: 47

(H)

+2051

ATTR: 00

(H)

+2052

COM: Command code

-

Page 9-14.

+2053

Command Text: Command detail

-

[3] Description of each command

to

+3777

+4040

Node number of destination node.

+4041

00

(H)

(Response message type)

+4042 to 4043

1000

(H)

(Transaction code: request)

+4044 to 4047

00

(H)

(Top address of the virtual address

space)

+4050 to 4051

00

(H)

(Data length requesting to the virtual

address space)

+4052

01

(H)

(Current fragment block number)

+4053

01

(H)

(Total fragment block number)

+4054 to 4055

00

(H)

(Current block length)

+301

Transfer the data

When a computer link message format is used, the sending and receiving details of the transmission
buffer are set as follows.

1

1

1

1

1

Put the address of the [information section] and [data section] containing the data to be sent in the
transmission buffer (base address +2000 to 3777

(8)

, and base address +4040 to 4055

(8)

).

(Transmission buffer table 

 Page 9-4.)

2

2

2

2

2

Write 01

(H)

 at the base address +301 in communication control area and the details in the trans-

mission buffer will be sent to the destination node.

Enter the top address of the communication control area and the area (base address +000 to
301

(8)

) will be allocated. Enter the top address at parameter addresses 30 to 32

(8)

. 

 Page

12-1.

Continued on the next page.

(Communication control area table

 See page 10-1.)