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BSP BURROUGHS SCIENTIFIC PROCESSOR
CONTENTS
Page
1. INTRODUCTION C-l
2. SYSTEM DESCRIPTION C-3
3. ERROR DETECTION C-5
File Memory Control C-5
Control Processor C-7
Control and Maintenance Unit C-9
Parallel Processor Control Unit C-ll
Parallel Processor C-ll
Arithmetic Element C-12
Output Alignment Network C-12
Memory Interface and Parallel Memory
Address Parity Checks C-12
4. MAINTENANCE LOG FEATURES OF THE BSP C-15
5. INSTRUCTION RETRY C-17
File Memory Control C-17
Control Processor C-18
Parallel Processor C-18
C-iii
~~~~~~~~~~~~~~~~~~~~~~~BURROUGHSSCIENTIFICPROCESSOR
(1
BSP- BURROUGHS SCIENTIFIC PROCESSOR
1. INTRODUCTION
The Burroughs Scientific Processor (BSP) is one of the first machines of its class
to employ the features of single-bit error correction of memory data and instruc-
tion retry. The system design embodies extensive error-detection capabilities
that are the necessary foundations for effective retry. Additionally, all major
data paths are protected with a modified Hamming code which provides single-bit
error detection and correction and double-bit error detection. These features,
coupled with the failure log capabilities, provide the scientific user and the
Burroughs field engineer with state-of-the-art maintenance capabilities.
C-l
~~~ ~~~~~~~~~~~~~~~~~~~~BURROUGHSSCIENTIFICPROCESSOR
FILE
MEMORY
STORAGE
UNIT
SYSTEM MANAGER
PARALLEL PROCESSOR
DATA AND PROGRAMS
FILE
.25M WORDS/SEC
-- MEMORY
12.5M WORDS/SEC
CONTROLLER