- 专利标题: LATCH CIRCUIT DEVICE AND PORT SAMPLING SYSTEM
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申请号: US17582705申请日: 2022-01-24
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公开(公告)号: US20230059694A1公开(公告)日: 2023-02-23
- 发明人: Kazuo HORIUCHI
- 申请人: DENSO TEN Limited
- 申请人地址: JP Kobe-shi
- 专利权人: DENSO TEN Limited
- 当前专利权人: DENSO TEN Limited
- 当前专利权人地址: JP Kobe-shi
- 优先权: JP2021-135347 20210823
- 主分类号: G11C7/10
- IPC分类号: G11C7/10
摘要:
A latch circuit device includes: a latch circuit configured to latch an input signal to a microcomputer; a detection circuit configured to detect that the input signal is input to the latch circuit during a sleep period in which the microcomputer is in a sleep state; a wake-up circuit configured to transmit a wake-up signal to the microcomputer when an input of the input signal is detected during the sleep period; a sampling circuit configured to read the input signal from the latch circuit; a transmission circuit configured to transmit the input signal read by the sampling circuit to the microcomputer returned from the sleep state based on the wake-up signal; and a release circuit configured to release a latch state of the latch circuit after the input signal is read.