Invention Grant
- Patent Title: Integrated circuit with high-speed clock bypass before reset
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Application No.: US17078708Application Date: 2020-10-23
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Publication No.: US11196424B2Publication Date: 2021-12-07
- Inventor: Jose Luis Flores , Venkateswar Reddy Kowkutla , Ramakrishnan Venkatasubramanian
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Ebby Abraham; Charles A. Brill; Frank D. Cimino
- Main IPC: H03L7/08
- IPC: H03L7/08 ; H03K19/20 ; G06F1/10 ; G06F1/08 ; H03K5/00

Abstract:
An integrated circuit includes: a clock domain having a clock domain input; and clock management logic coupled to the clock domain. The clock management logic includes: a PLL having a reference clock input and a PLL clock output; a divider having a divider input and a divider output, the divider input coupled to the PLL clock output; and bypass logic having a first clock input, a second clock input, a bypass control input, and a bypass logic output, the first clock input coupled to divider output, the second clock input coupled to the reference clock input, and the bypass logic output coupled to the clock domain input. The bypass logic selectively bypasses the PLL and divider responsive to a bypass control signal triggered by a reset signal. The reset signal also triggers a reset control signal delayed relative to the bypass control signal.
Public/Granted literature
- US20210211132A1 INTEGRATED CIRCUIT WITH HIGH-SPEED CLOCK BYPASS BEFORE RESET Public/Granted day:2021-07-08
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