PPD113B01-10-150000控制器,ABB處理卡件
并行I10端口可編程為允許單向8位端口，雙向8位端口和位I10（8位端口中的每個(gè)位方向都是可編程的。高電流驅(qū)動(dòng)器選項(xiàng)可用。當(dāng)采用大電流選項(xiàng)時(shí)8位端口僅可編程用于單向輸出或輸入。
2.2功能特性：兼容性：VMEbus規(guī)格兼容雙高形狀系數(shù)I10連接器類型：64針連接器DIN 41 61 2110組織：251 1板使用兩個(gè)摩托羅拉MC68230并行接口定時(shí)器，提供多種可編程I10功能，包括位110，單向$-位和16位輸入/輸出，雙向8位和16位110，可選握手選項(xiàng)和24位可編程定時(shí)器。
PPD113B01-10-150000控制器251 1可能是訂購時(shí)帶有緩沖110選項(xiàng)，可提供多達(dá)64mA接收器能力；然而，雙向此選項(xiàng)不支持模式。此外如果選擇位I10模式，則所有端口A數(shù)據(jù)位必須按相同方向編程。一個(gè)八位DIP開關(guān)提供電路板住址251 1在工廠配置為響應(yīng)短監(jiān)督輸入/輸出訪問；
但是，用戶可以將跳線更改為啟用短非特權(quán)I10訪問。方塊圖VMIVME-2511由10個(gè)主要子系統(tǒng)組成，如圖3-1所示。每個(gè)子系統(tǒng)進(jìn)一步分解為詳細(xì)的框圖，如所示圖3-2至3-4。3.2操作概述如圖3-1中的功能框圖所示，VMIVME-2511利用兩個(gè)MC68230模塊。每個(gè)MC68230并行接口定時(shí)器模塊（PI/T）有3個(gè)110個(gè)端口和一些額外的握手接口。握手信號(hào)和輸入/輸出每個(gè)模塊的端口依次映射到單個(gè)110連接器。模塊將在討論中提及與P3連接器相關(guān)的如下所示。與P4連接器相關(guān)的模塊將為稱為Pl/T#2。要使用VMIVME-2511執(zhí)行110次數(shù)據(jù)傳輸，請(qǐng)?jiān)趦蓚€(gè)Pl/T模塊的選擇取決于輸入或輸出數(shù)據(jù)傳輸連接P3或P4。為了使用VMIVME-2511實(shí)現(xiàn)中斷處理，選擇了PIIT模塊為端口或定時(shí)器中斷編程。然后是68153總線中的正確通道啟用中斷器模塊（BIM），允許特定的中斷源由系統(tǒng)處理器確認(rèn)。由于以下原因，需要選擇一些跳線：Plrr模塊的端口通道可以用作110通道或中斷當(dāng)緩沖器選項(xiàng)信號(hào)方向也為跳投。
The parallel I10 ports are programmable to allow unidirectional 8-bit ports,
bidirectional 8-bit ports and bit I10 (each bits direction in a 8-bit port is programmable.
A high current driver option is available. When the high current option is employed, the
8-bit ports are programmable for unidirectional only, either outputs or inputs.
2.2 FUNCTIONAL CHARACTERISTICS:
Compatibility: VMEbus Specification Compatible Double-Height
Form Factor
I10 Connector Type: 64-pin connector-DIN 41 61 2
110 Organization: The 251 1 board utilizes two Motorola MC68230
Parallel Interfacerrimers that provide a wide variety of
programmable I10 features including bit 110,
unidirectional $-bit and 16-bit I/O, bi-directional 8-bit
and 16-bit 110, selectable handshaking options and
a 24-bit programmable timer. The 251 1 may be
ordered with a buffered 110 option that provides up to
64mA sink capability; however, the bi-directional
modes are not supported with this option. In addition,
if the bit I10 mode is chosen, all Port A data bits must
be programmed in the same direction. One eight position DIP switch provides the board
address. The 251 1 is configured at the factory to
respond to short supervisory I/O access;
however, the user may change the jumper to enable
short non-privileged I10 access. BLOCK DIAGRAMS
The VMIVME-2511 consists of 10 major subsystems as illustrated in Figure 3-1.
Each subsystem is further broken down into detailed block diagrams as shown in
Figures 3-2 through 3-4.
3.2 OPERATIONAL OVERVIEW
As noted in the functional block diagram in Figure 3-1, the VMIVME-2511 utilizes
two MC68230 modules. Each MC68230 Parallel InterfaceiTimer module (PI/T) has 3
110 ports and some additional handshake interface. The handshake signals and the I/O
ports of each module are in turn mapped into a single 110 connector. The module
which is associated with the P3 connector will be referred to in the discussion which
follows as Pl/T #I. The module which is associated with the P4 connector will be
referred to as Pl/T #2.
To perform 110 data transfers with the VMIVME-2511, registers on board the two
Pl/T modules are selected for either input or output data transfers depending on which
connector, P3 or P4, is to be accessed. To achieve interrupt processing with the VMIVME-2511, the chosen PIIT module
is programmed for port or timer interrupts. Then the proper channel in the 68153 Bus
Interrupter Module (BIM) is enabled allowing the particular interrupt source of interest to
be acknowledged by the system processor. Some jumper selection is required due to
the port channels of the Plrr modules which can serve as 110 channels or interrupt
request or acknowledge signals when the buffer option signal direction is also
jumpered.
