18925501. METHODS AND APPARATUS FOR SYSTEM CLOCK CONTROL (Arm Limited)
METHODS AND APPARATUS FOR SYSTEM CLOCK CONTROL
Organization Name
Inventor(s)
Sarah Jean Kimber of Sheffield GB
Stuart James Aitken of Cambridge GB
METHODS AND APPARATUS FOR SYSTEM CLOCK CONTROL
This abstract first appeared for US patent application 18925501 titled 'METHODS AND APPARATUS FOR SYSTEM CLOCK CONTROL
Original Abstract Submitted
The present techniques relate to a clock control scheme and related methods and circuitry in a system comprising one or more processor cores and there is disclosed a control state machine in a clock controller circuit comprises a sender operable to signal a request to a subordinate state machine and to store a request sent indicator in a store; a first receiver operable to receive an acknowledgement indicator signalled by the subordinate state machine and to clear the request sent indicator in the store; a delay component operable to hold the control state machine in a wait state; a second receiver operable to receive a request complete indicator signalled by the subordinate state machine; and the delay component responsive to receipt of the request complete indicator to release the control state machine from the wait state.