September 2002
Intermediate to advanced
332 pages
11h 1m
English
Content preview from IBM eServer zSeries 900 Technical Guide
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Chapter 2. zSeries 900 system structure 21
Dual Cryptographic Coprocessors
All z900 models have a standard Cryptographic Coprocessor Feature (CCF), provided by
dual Cryptographic Coprocessors. The Cryptographic Element (CE) chips use CMOS 7S
technology and, as for PCI Cryptographic Coprocessors and PCI Cryptographic Accelerators,
use 64-bit operands and general registers for all crypto coprocessor instructions.
Different from 9672 G5/G6 servers, the CE chips have been moved from the MultiChip
Module (MCM) to the Single-Chip Modules (SCMs) located on the rear CPC cage. Both CEs
have dual paths to a PU in each cluster in a twin-tailed configuration. ...
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