1.14 Spinlock; 1.14.1 Overview; Spinlock Module - Texas Instruments TMS320C6A816 Series Technical Reference Manual

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1.14 Spinlock

1.14.1 Overview

The Spinlock module provides hardware assistance for synchronizing the processes running on multiple
processors in the device:
• Cortex-A8 microprocessor unit (MPU) subsystem
• Digital signal processor (DSP) subsystem
• Media Controller subsystem
The Spinlock module implements 64 spinlocks (or hardware semaphores), which provide an efficient way
to perform a lock operation of a device resource using a single read-access, avoiding the need of a
read-modify-write bus transfer that the programmable cores are not capable of.
Device
SPRUGX9 – 15 April 2011
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Figure 1-88. Spinlock Module
L4_CFG interconnect
PRCM
© 2011, Texas Instruments Incorporated
Preliminary
Spinlock
Lock register 1
Lock register 2
SPINLOCK_ICLK
SPINLOCK_RST Lock register 64
Spinlock
237
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