HP 27114-90011-1 27114A ERS Nov86 free download

File name 27114-90011-1_27114A_ERS_Nov86.pdf

27114A EXTERNAL REFERENCE SPECIFICATION A-2711~-90011-1 Rev A CONTENTS 1. SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2. GENERAL ... 2-1 2.1 Description ... , ... 2-1 2.2 Fnvironment ... 2-1 2.3 Installation ... 2-1 3. FRONTPLANE FUNCTIONAL DESCRIPTION ... 3-1 3.1 Physical Characteristics of Frontplane Signals ... 3-1 3.1.1 Cable - differential version ... 3-1 3.1.2 Cable (single-ended version): ... 3-1 3.1.3 Drivers and Receivers ... 3-2 3.1.~ Bi-directional bus ... 3-2 3.2 Signal Definitions ... 3-3 3.3 pin out ... 3-5 3.~ Logic sense on frontplane interface ... 3-18 3 . 5 Da t a Tr an s fer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -18 3.6 Frontplane Timing ... 3-21 3.7 Back-to-Back 2711~ Link ... 3-2~ 3.7.2 Back-to-Back Data Transfer ... 3-25 ~. BACKPLANE CONTROL DESCRIPTION ... ~-1 ~.1 Register Definitions ... ~-1 ~.1.1 Register descriptions: ... ~-3 ~.1.2 Card Identification ... ~-8 ~.2 Data path pipeline ... ~-8 ~.2.1 FIFO and external latches ... ~-9 ~.2.2 State machine ... ~-9 ~.2.3 SRQ poll response and burst request ... ~-10 ~.2.~ Backplane data handshaking ... ~-10 ~.2.5 Frontplane data handshaking ... ~-11 ~.3 Data Path Loopback ... ~-11 ~.3.1 Loopback without test hood ... ~-12 ~.3.2 Loopback with test hood ... ~-12 ~ .~ Interrupts ... ~-1~ ~.5 Output to a Peripheral ... ~-1~ ~.6 Data input from a Peripheral ... ~-16 ~.7 Dealing with the Data Path Pipeline ... ~-16 ~.8 27114 to 2711~ Connections - Software ... ~-18 5. PERFORMANCE ISSUES ... 5-1 5.1 Fundamental Limits to Performance ... 5-1 5.2 Frontplane Limits to Performance ... 5-2 5.2.1 Cable Length ... ~ ... -... 5-3