DLV11 asynchronous serial line interface - Revision history

Jnc: /* External links */ another section

2023-07-07T17:15:09Z

‎External links: another section

Jnc: /* External links */ +manuals

2023-07-07T13:22:00Z

‎External links: +manuals

Jnc: New cat scheme

2023-02-16T23:17:31Z

New cat scheme

Jnc: Add to new asynch category; doings the asyncs now, syncs are mostly done

2022-08-16T19:46:35Z

Add to new asynch category; doings the asyncs now, syncs are mostly done

Jnc: config; FMPS

2022-01-20T14:36:15Z

config; FMPS

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2020-10-16T21:11:48Z

+img

Jnc: +See also

2019-07-27T17:57:47Z

+See also

Jnc: Basics

2019-07-27T17:23:24Z

Basics

New page

The '''DLV11 asynchronous serial line interface''' card (M7940) was a [[QBUS]] [[peripheral]] for the [[PDP-11]] series of computers which provided an [[asynchronous serial line]] on a single [[DEC card form factor|dual-width]] card.

It provided both [[EIA RS-232 serial line interface|EIA RS-232]], and active or passive [[20mA current loop serial line interface|20 mA]] connectivity, at speeds of 110 to 9600 [[baud rate|baud]]; it had vestigial [[modem]] control. Line connection was via 40-pin [[Berg connector]] headers on the top edge of the card, using the standard [[DEC asynchronous serial line pinout]].

==Programing interface==

Like the ancestral [[KL11 asynchronous serial line interface|KL11]], the DLV11 has 2 device [[register]]s for the receive side (one Control and Status Register - CSR - and one data [[buffer]] register), and similarly, two for the transmit side. Each line has two [[interrupt vector]]s - again, one receive, and one transmit.

For the PDP-11 main console (which is always a KL11/DL11 compatible device), the standard is that 0777560 is the base address (so the receiver registers are 0777560-2, and the transmitter are 0777564-6), and 060 is the base vector. It can be set to [[halt]] the [[Central Processing Unit|CPU]] when a '[[asynchronous serial line|break]]' is seen.

The first line after the console is always assigned the address 0776500, and vector 0300. Additional lines are assigned addresses and vectors immediately following, for DL11's #1-#16 (i.e. 0776500-676 and 0300-0476).

[[Category: QBUS Serial Interfaces]]

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 ==External links==
-* [http://www.bitsavers.org/pdf/dec/pdp11/1103/EK-LSI11-TM-002.pdf LSI-11, PDP-11/03 user's manual] (EK-LSI11-TM-002) - the DLV11 is covered in Section 6.2 (pp. 91-95 of the PDF)
+* [http://www.bitsavers.org/pdf/dec/pdp11/1103/EK-LSI11-TM-002.pdf LSI-11, PDP-11/03 user's manual] (EK-LSI11-TM-002) - the DLV11 is covered in Sections 4.7 (pp. 68-73 of the PDF) and 6.2 (pp. 91-95)
 * [http://www.bitsavers.org/pdf/dec/qbus/Digital_Microcomputer_Interfaces_Handbook_1980.pdf microcomputer interfaces handbook] - the DLV11 is covered on pp. 173-187 of the PDF
 * [http://www.bitsavers.org/pdf/dec/qbus/Digital_Microcomputer_Products_Handbook_1985.pdf Microcomputer Products Handbook] - the DLV11 is covered in Chapter 21 (pp. 285-291 of the PDF)

@@ Line 22: / Line 22: @@
 ==External links==
-−
-* [http://www.bitsavers.org/pdf/dec/qbus/Digital_Microcomputer_Interfaces_Handbook_1980.pdf microcomputer interfaces handbook] - the DLV11 is covered on pp. 173-187
+* [http://www.bitsavers.org/pdf/dec/pdp11/1103/EK-LSI11-TM-002.pdf LSI-11, PDP-11/03 user's manual] (EK-LSI11-TM-002) - the DLV11 is covered in Section 6.2 (pp. 91-95 of the PDF)
 * [http://www.bitsavers.org/pdf/dec/qbus/MP00055_DLV11_Jun76.pdf DLV11 Field Maintenance Print Set] (MP00055)
 [[Category: QBUS Asynchronous Serial Interfaces]]

← Older revision		Revision as of 23:17, 16 February 2023
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	* [http://www.bitsavers.org/pdf/dec/qbus/MP00055_DLV11_Jun76.pdf DLV11 Field Maintenance Print Set] (MP00055)		* [http://www.bitsavers.org/pdf/dec/qbus/MP00055_DLV11_Jun76.pdf DLV11 Field Maintenance Print Set] (MP00055)

−	[[Category: QBUS ~~Serial Interfaces]]~~	+	[[Category: QBUS Asynchronous Serial Interfaces]]
−	~~[[Category: DEC~~ Asynchronous Serial Interfaces]]

← Older revision		Revision as of 19:46, 16 August 2022
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	[[Category: QBUS Serial Interfaces]]		[[Category: QBUS Serial Interfaces]]
		+	[[Category: DEC Asynchronous Serial Interfaces]]

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 It provided both [[EIA RS-232 serial line interface|EIA RS-232]], and active or passive [[20mA current loop serial line interface|20 mA]] connectivity, at speeds of 110 to 9600 [[baud rate|baud]]; it had vestigial [[modem]] control. Line connection was via 40-pin [[Berg connector]] headers on the top edge of the card, using the standard [[DEC asynchronous serial line pinout]].
 ==Programing interface==
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 * [[DLV11-F asynchronous serial line interface]]
 * [[DLV11-J asynchronous serial line interface]]
 [[Category: QBUS Serial Interfaces]]

← Older revision		Revision as of 21:11, 16 October 2020
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		+	[[Image:DLV11_M7940.jpg\|thumb\|right\|300px\|DLV11 M7940 board]]
		+
	The '''DLV11 asynchronous serial line interface''' card (M7940) was a [[QBUS]] [[peripheral]] for the [[PDP-11]] series of computers which provided an [[asynchronous serial line]] on a single [[DEC card form factor\|dual-width]] card.		The '''DLV11 asynchronous serial line interface''' card (M7940) was a [[QBUS]] [[peripheral]] for the [[PDP-11]] series of computers which provided an [[asynchronous serial line]] on a single [[DEC card form factor\|dual-width]] card.

← Older revision		Revision as of 17:57, 27 July 2019
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	The first line after the console is always assigned the address 0776500, and vector 0300. Additional lines are assigned addresses and vectors immediately following, for DL11's #1-#16 (i.e. 0776500-676 and 0300-0476).		The first line after the console is always assigned the address 0776500, and vector 0300. Additional lines are assigned addresses and vectors immediately following, for DL11's #1-#16 (i.e. 0776500-676 and 0300-0476).
		+
		+	==See also==
		+
		+	* [[DLV11-E asynchronous serial line interface]]
		+	* [[DLV11-F asynchronous serial line interface]]
		+	* [[DLV11-J asynchronous serial line interface]]

	[[Category: QBUS Serial Interfaces]]		[[Category: QBUS Serial Interfaces]]