公开(公告)号：US20170091139A1

公开(公告)日：2017-03-30

申请号：US14870770

申请日：2015-09-30

Applicant: FREESCALE SEMICONDUCTOR, INC.

Inventor： William E. Edwards ,  Jesse R. Beeker

IPC: G06F13/42 ,  G06F13/40

CPC classification number: G06F13/4282 ,  G06F13/16 ,  G06F13/24 ,  G06F13/4027

Abstract: A method and apparatus provide an ability to selectively couple one of the output of the buffer or the output of the digital driver to a data terminal based upon a state of a storage location in which a stored first select indicator is stored and based upon a state of a selection signal. An external serial interface, at a semiconductor die, includes the data terminal, a selection terminal to receive the selection signal, and a clock terminal to receive a clock signal. A buffer includes an input to receive a secondary signal and an output to provide the secondary signal to the data terminal. A digital driver includes a digital output coupled to the data terminal. A first storage location has a storage state based upon the stored first select indicator. Select circuitry provides the selectively coupling.

公开(公告)号：US10235324B2

公开(公告)日：2019-03-19

申请号：US14870770

申请日：2015-09-30

Applicant: FREESCALE SEMICONDUCTOR, INC.

Inventor： William E. Edwards ,  Jesse R. Beeker

IPC: G06F13/16 ,  G06F13/42 ,  G06F13/40 ,  G06F13/24

Abstract: A method and apparatus provide an ability to selectively couple one of the output of the buffer or the output of the digital driver to a data terminal based upon a state of a storage location in which a stored first select indicator is stored and based upon a state of a selection signal. An external serial interface, at a semiconductor die, includes the data terminal, a selection terminal to receive the selection signal, and a clock terminal to receive a clock signal. A buffer includes an input to receive a secondary signal and an output to provide the secondary signal to the data terminal. A digital driver includes a digital output coupled to the data terminal. A first storage location has a storage state based upon the stored first select indicator. Select circuitry provides the selectively coupling.