Multiple virtual preamps in a single die

摘要

Methods, apparatuses, and systems for allowing a single-die preamp to act as two or more virtual preamps for reading or writing data through multiple heads or elements concurrently. A selection register of a preamplifier is set to enable access to a primary register map. Values of registers in the primary register map are set to program a primary preamp channel for performing read or write operations to a first head. The selection register is then set to enable access to a secondary register map, and values of registers in the secondary register map are set to program a secondary preamp channel for performing read or write operations to a second head. Read or write operations can be performed to the first head through the primary preamp channel at a same time that read or write operations are performed to the second head through the second preamp channel.

主权项

1. A method comprising steps of:
setting a selection register of a preamplifier in a storage device to enable access to a primary register map of the preamplifier; setting values of registers in the primary register map to program a primary preamp channel for performing read or write operations to a first reader or writer element in the storage device; setting the selection register to enable access to a secondary register map of the preamplifier; setting values of registers in the secondary register map to program a secondary preamp channel for performing read or write operations to a second reader or writer element in the storage device; and performing the read or write operations to the first reader or writer element through the primary preamp channel while concurrently performing the read or write operations to the second reader or writer element through the second preamp channel.