Sharp JW-20FL5, JW-20FLT, JW-50FL, Z-336J manual 94

Chapter 9: Message transfers

[1] Setting the computer link to send and receive data

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

1Setting the sending details (command)

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	Details
buffer address(8)
+2000	Header (40 bytes)
	- Normally, all 40 bytes to 00(H).
to	When you want to communicate crossover
	two layers including Ethernet, enter
	expansion header.
+2047
	- [5] Two layer communication with Ethernet.
		Sending
+2050	c-ID: 47(H)			Command
		[data section]
+2051	ATTR: 00(H)			page 9-
			14.
+2052	COM: Command code - Page 9-14.
+2053	Command Text: Command detail
to
	- [3] Description of each command
+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)	Sending			9
+4050 to 4051	00(H) (Data length requesting to the virtual	[information section]
	address space)
+4052	01(H) (Current fragment block number)
+4053	01(H) (Total fragment block number)
+4054 to 4055	00(H) (Current block length)

(Transmission buffer table Page 9-4.)

2Transmit the data

Write 01(H) at the base address +301 in communication control area and the details in the transmission buffer will be sent to the destination node.

Communication control	Details	(Communication control area table
area address(8)
		See page 10-1.)
+301	Transfer the data

Communication control area settings

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.

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