JPS5858633A - Input/output channel processor - Google Patents

Input/output channel processor

Info

Publication number
JPS5858633A
JPS5858633A JP15843281A JP15843281A JPS5858633A JP S5858633 A JPS5858633 A JP S5858633A JP 15843281 A JP15843281 A JP 15843281A JP 15843281 A JP15843281 A JP 15843281A JP S5858633 A JPS5858633 A JP S5858633A
Authority
JP
Japan
Prior art keywords
input
status information
output
signal
output channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15843281A
Other languages
Japanese (ja)
Inventor
Makoto Hidaki
肥田木 誠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP15843281A priority Critical patent/JPS5858633A/en
Publication of JPS5858633A publication Critical patent/JPS5858633A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/10Program control for peripheral devices
    • G06F13/12Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor
    • G06F13/122Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware performs an I/O function other than control of data transfer

Abstract

PURPOSE:To obtain a device which has elevated an overall processing speed, by inputting a status information signal to an input/output channel from an input/ output controller in advance, and storing it temporarily so that this signal can be supplied to a central processing unit. CONSTITUTION:To an input/output channel which has received an interruption request from an input/output controller, a status information signal is inputted in advance, and is stored temporarily so that this signal can be supplied to a central processing unit. For instance, from an input/output controller IOC3, an interruption request signal 4 is sent out to an input/output channel IOP2, is set to a flip-flop 12 of the IOP2, an interruption request signal 5 is sent out to a CPU1, and a status information request signal 7 is outputted to the IOC3. Subsequently, a status information signal 8 is sent out from a status information signal holding register STSR10 of the IOC3 to an STSR11 of the IOP2, and this signal is stored by the STSR11. Subsequently, from the CPU1, a status information request signal 13 is outputted to the IOP2, and the contents of the STSR11 are outputted as a status information signal 14 to the CPU1.

Description

【発明の詳細な説明】 この発明は入出力チャネルの割込処理に関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to interrupt processing of input/output channels.

従来、この種の処理装置として第″1図に示すものがあ
った。図において、(1)は中央処理装置(以下CPU
と略記する)%(2)は入出力チャネル(以下、IOP
と略記する)、(3)Fi入出力制御竺装(以下IOC
と略記する) % (4) 、 (5)はそれぞれ割込
要求信号、(6) 、 (7)はそれぞれ状態情報要求
信号、(8) 、 (9)はそれぞれ状態情報信号で、
状態・情報信号(8) 、 (9)は多ビットで構成さ
れデータバスによって!送される。alは状態情報信号
保持レジスタ(以下5TSRと略記する)である。
Conventionally, there was a processing device of this type as shown in Figure 1. In the figure, (1) is a central processing unit (hereinafter referred to as CPU).
%(2) is the input/output channel (hereinafter referred to as IOP)
(abbreviated as IOC), (3) Fi input/output control system (hereinafter referred to as IOC)
) % (4) and (5) are respectively interrupt request signals, (6) and (7) are each status information request signals, (8) and (9) are each status information signals,
The status/information signals (8) and (9) are composed of multiple bits and are transmitted by a data bus! sent. al is a status information signal holding register (hereinafter abbreviated as 5TSR).

IOC(3)から割込要求信号(4)が出力され、この
信号(4)はIOP f21を経由して割込要求信号(
5)としてCPU (11に到達する。CPU (1)
はこれを検知してl0C(3)から状態情報信号を受取
るための状態情報要求信号(6)を送出する。要求信号
(6)はIOPを経由して要求信号(7)としてIOC
(3)に到達する。IOC(3)では要求信号(7)を
受けて5TSRQ□内に保持しである状態情報信号(8
)を出力し、これがIPO(2)を経由して状態情報信
号(9)としてCPU (11に入力される。
An interrupt request signal (4) is output from the IOC (3), and this signal (4) is sent to the interrupt request signal (
5) to reach CPU (11) as CPU (1)
detects this and sends out a status information request signal (6) for receiving the status information signal from l0C (3). The request signal (6) is sent to the IOC as a request signal (7) via the IOP.
(3) is reached. IOC (3) receives the request signal (7) and sends the status information signal (8) held in 5TSRQ□.
), which is input to the CPU (11) as a status information signal (9) via the IPO (2).

以上の一連の動作でIOC(3)とCPU (11間の
割込処理応答が終了したことになる。
With the above series of operations, the interrupt processing response between the IOC (3) and the CPU (11) is completed.

従来の装置は上述のように構成されているが、これは状
態情報要求信号(7)が入力されてから状態情報信号(
8)示出力されるまでの時間が短時間であるということ
を前提としている。ところで鍛近のIOP、  IOC
はマイクロプログラム制御となっており、処理速度が遅
く、また一般にはIOPよりIOCの方が処理速度が遅
いため、従来の装置ではCPU(1)が状態情報要求信
号(6)を送出してから状態情報信号(9)がCPU 
(11に入力されるまでの遅れが無視できな諭ものとな
るという欠点があった。
The conventional device is configured as described above, but this is because the state information request signal (7) is input and then the state information signal (7) is input.
8) It is assumed that the time until the display is output is short. By the way, Karichika's IOP, IOC
is controlled by a microprogram, and the processing speed is slow. In general, the processing speed of the IOC is slower than that of the IOP, so in conventional devices, after the CPU (1) sends the status information request signal (6), Status information signal (9) is CPU
(There was a drawback that the delay until it was input to 11 was a problem that could not be ignored.

この発明は従来の装置における上述の欠点を除去するた
めになされたもので、IOCから割込要求信号を受けた
IOPが、状態情報信号をIOCからあらかじめ入力し
て一時記憶しておき、CPUへはIOPから状態情報信
号を供給でき本ようにして綜合的な処理速度を向上した
装置を提供することを目的としている。
This invention was made in order to eliminate the above-mentioned drawbacks in conventional devices, and the IOP receives an interrupt request signal from the IOC, inputs the status information signal from the IOC in advance, temporarily stores it, and sends it to the CPU. The object of the present invention is to provide a device which can supply status information signals from an IOP, thus increasing the overall processing speed.

以下、図面についてこの発明の詳細な説明する。第2図
はこの発明の基本動作を説明するブロック図で、第2図
において第1図と同一符号は同−又は相当一部分、ある
いは同−又は相当信号を示し、0ηはIOP (2)内
の5TSR、(2)はフリップフロップ、03は状態情
報要求信号、α◆は状態情報信号である。
Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 2 is a block diagram illustrating the basic operation of the present invention. In FIG. 2, the same reference numerals as in FIG. 5TSR, (2) is a flip-flop, 03 is a state information request signal, and α◆ is a state information signal.

IOC(3)から割込要求信号(4)がIOP (2)
に到来すると、IOP (2)はフリップフロップ(2
)をセットし、CPU (1)に対し割込要求信号(5
)を送出し、同時にIOC(3)に対して状態情報要求
信号(7)を出力する。
Interrupt request signal (4) from IOC (3) is sent to IOP (2)
When the IOP (2) arrives at the flip-flop (2
) and sends an interrupt request signal (5) to the CPU (1).
) and simultaneously outputs a status information request signal (7) to the IOC (3).

この要求信号(7)に対しIOC(3)の5TSRα1
からは状態情報信号(8)が出力されIOP (2)の
5TSRQηに入力される。この時点でIOC(3)は
割込要求中の状態ではなくなる。
5TSRα1 of IOC (3) in response to this request signal (7)
A status information signal (8) is output from the IOP (2) and input to 5TSRQη of the IOP (2). At this point, IOC (3) is no longer in the interrupt requesting state.

次K CPU (1)から状態情報要求信号(至)がI
OP (2)に出力されると5TSRQl)の内容が状
態情報信号04としてCPU (11へ出力される。こ
の出方が終了するとIOP (2)はフリップフロップ
(6)をリセットして割込要求信号(5)を消去する。
The state information request signal (to) from the next K CPU (1) is I
When output to OP (2), the contents of 5TSRQl) are output to CPU (11) as status information signal 04. When this output is completed, IOP (2) resets flip-flop (6) and issues an interrupt request. Erase signal (5).

第3図はこの発明の一実施例を示すブロック図で、第2
図と同一符号は同−又は相当部分或は同−又は相当信号
を示し、CI) 、 01 、・・・(3n) tiそ
れぞれ第2図+7) (3) K相当する■oc、  
(101)、(102)。
FIG. 3 is a block diagram showing one embodiment of the present invention.
The same reference numerals as in the figure indicate the same or equivalent parts or the same or equivalent signals, CI), 01, ... (3n) ti respectively in Figure 2 + 7) (3)
(101), (102).

・・・(10a)はそれぞれ第2図のα([相当する5
TSR。
...(10a) are respectively α([corresponding 5
T.S.R.

(41) 、 (42)・・・(4n)はそれぞれ第2
図の(4)に相当する割込要求信号、(110)は状態
情報保持レジスタ群、  (120)は割込保持テーブ
ルである。
(41), (42)...(4n) are the second
An interrupt request signal corresponding to (4) in the figure, (110) a group of status information holding registers, and (120) an interrupt holding table.

第3図に示すように、一般K IOP (2)には複数
のIOC(31、0’4−・・・(3n)が接続される
。割込要求信号(41) 、 (42)−・・・(4カ
)のいずれかの信号が出力されるとIOP (2)はフ
リップフロップα2をセットし、割込要求信号(5)を
CPU (1)に送出すると共に、割込要求信号(41
) 、 (42) 、・・・(4n)のうちのどの割込
要求信号であるかに応じ割込保持テーブル(120)中
の対応する位葉に割込フラグをセットする。又、この時
IOP (2)は該当するIOC中の5TSHの内容を
読取り状態情報信号(8)として入力し状態情報保持レ
ジスタ群(110)の中の該当レジスタに格納する。
As shown in FIG. 3, a plurality of IOCs (31, 0'4-...(3n) are connected to the general K IOP (2). Interrupt request signals (41), (42)-... ...When any of the (4) signals is output, IOP (2) sets flip-flop α2, sends the interrupt request signal (5) to CPU (1), and also outputs the interrupt request signal ( 41
), (42), . . . (4n), an interrupt flag is set in the corresponding position in the interrupt holding table (120) depending on which of the interrupt request signals is received. Also, at this time, the IOP (2) inputs the contents of 5TSH in the corresponding IOC as a read status information signal (8) and stores it in the corresponding register in the status information holding register group (110).

次にCPU (1)から状態情報要求信号(至)が出力
されると、IOP (2)はまず割込保持テーブル(1
20)を調べて該当IOC番号を捜し、該当IOC番号
が見つかったならば、状態情報保持レジスタ群(110
)中の該、当レジスタから状態情報信号を読出して信号
′α◆としてCPU (1)へ送出する。更にIOP 
(2)は割込保持テーブル(120)を調べて、他に割
込フラグがなければ割込要求フリップフロップ(イ)を
リセットして動作を終了する。
Next, when the status information request signal (to) is output from the CPU (1), the IOP (2) first outputs the interrupt holding table (1).
20) to find the relevant IOC number, and if the relevant IOC number is found, the status information holding register group (110
) is read out from the corresponding register and sent to the CPU (1) as a signal 'α◆. Furthermore, IOP
(2) checks the interrupt holding table (120), and if there are no other interrupt flags, resets the interrupt request flip-flop (a) and ends the operation.

以上のようにこの発明によれば、従来の装置においても
っばらIOCが行っていた割込処理動作の一部をIOP
が代替して行うことにより状態情報信号の送出を迅速に
行うことができる。
As described above, according to the present invention, a part of the interrupt processing operations that were performed mainly by the IOC in conventional devices can be performed by the IOP.
By performing this instead, the status information signal can be sent quickly.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の装置を示すブロック図、第2図はこの発
明の詳細な説明するブロック図、第3図はこの発明の一
実施例を示すブロック図である。 (11・・・CPU、 (2)−IOP 、 (3) 
、 (31) 、 (32) 、・・・(3n) ・−
IOC、QO−(101) 、(102) 、 −(1
0a)、0℃・・・5TSR,(110)・・・状態情
報保持レジスタ群、(120)・・・割込保持テーブル
。 なお、図中同一符号は同−又は相当部分を示す。 代理人 葛 野 信 − 第1図 1υ 第2図
FIG. 1 is a block diagram showing a conventional device, FIG. 2 is a block diagram explaining the present invention in detail, and FIG. 3 is a block diagram showing an embodiment of the present invention. (11...CPU, (2)-IOP, (3)
, (31) , (32) ,...(3n) ・-
IOC, QO-(101), (102), -(1
0a), 0°C...5TSR, (110)...Status information holding register group, (120)...Interrupt holding table. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Makoto Kuzuno - Figure 1 1υ Figure 2

Claims (1)

【特許請求の範囲】 複数の入出力制御装置と、この複数の入出力制御装置を
制御する入出力チャネルと、この入出力チャネルを介し
て上記複数の入出力側#装置との間に信号を送受する中
央処理装置とを有する入出力チャネル処理装置において
、 上記複数の入出力制御装置のうちのいずれかの入出力制
御装置から上記入出力チャネルへ割込要求信号が送出さ
れたとき、上記入出力チャネルにおいて上記割込要求信
号を上記中央処理装置に送出し、上記入出力チャネル内
に設けられた割込保持テーブル中の当該入出力制御装置
に対応する位置に割込フラグをセットし、かつ当該入出
力制御装置からの状態情報を上記入出力チャネル内に設
けられた状態情報保持レジスタ群中の当該入出力制御装
置に対応するレジスタに入力しで保持する手段と、上記
割込要求信号に対し上記中央処理装置から上記入出力チ
ャネルに対し情態要求信号が送出されたとき、上記割込
保持テーブル中の該当割込フラグを調査しこのフラグに
対応して上記状態情報保持レジスタ群中から選択したレ
ジスタの内容を上記中央処理装置へ送出する手段とを備
えたことを特徴とする入出力チャネル処理装置。
[Claims] Signals are transmitted between a plurality of input/output control devices, an input/output channel that controls the plurality of input/output control devices, and the plurality of input/output side devices via the input/output channels. In an input/output channel processing device having a central processing unit for sending and receiving data, when an interrupt request signal is sent from any one of the plurality of input/output control devices to the input/output channel, the input/output Sending the interrupt request signal to the central processing unit in the output channel, setting an interrupt flag in a position corresponding to the input/output control device in an interrupt holding table provided in the input/output channel, and means for inputting and holding status information from the input/output control device into a register corresponding to the input/output control device in a group of status information holding registers provided in the input/output channel; On the other hand, when a state request signal is sent from the central processing unit to the input/output channel, the corresponding interrupt flag in the interrupt holding table is checked and a selection is made from the state information holding register group in accordance with this flag. an input/output channel processing device, comprising means for sending the contents of the registered register to the central processing unit.
JP15843281A 1981-10-05 1981-10-05 Input/output channel processor Pending JPS5858633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15843281A JPS5858633A (en) 1981-10-05 1981-10-05 Input/output channel processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15843281A JPS5858633A (en) 1981-10-05 1981-10-05 Input/output channel processor

Publications (1)

Publication Number Publication Date
JPS5858633A true JPS5858633A (en) 1983-04-07

Family

ID=15671630

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15843281A Pending JPS5858633A (en) 1981-10-05 1981-10-05 Input/output channel processor

Country Status (1)

Country Link
JP (1) JPS5858633A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62114052A (en) * 1985-11-14 1987-05-25 Fujitsu Ltd State information collecting system for input/output device
WO2009078135A1 (en) * 2007-12-19 2009-06-25 Advantest Corporation Test apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62114052A (en) * 1985-11-14 1987-05-25 Fujitsu Ltd State information collecting system for input/output device
WO2009078135A1 (en) * 2007-12-19 2009-06-25 Advantest Corporation Test apparatus
US7792656B2 (en) 2007-12-19 2010-09-07 Advantest Corporation Test apparatus
JP5331709B2 (en) * 2007-12-19 2013-10-30 株式会社アドバンテスト Test equipment

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