发明授权
US08898425B1 Memory management unit (MMU) to make only one time programmable (OTP) memory appear multiple time programmable (MTP)
有权
内存管理单元（MMU）仅使一次可编程（OTP）存储器出现多次可编程（MTP）
- 专利标题： Memory management unit (MMU) to make only one time programmable (OTP) memory appear multiple time programmable (MTP)
- 专利标题（中）： 内存管理单元（MMU）仅使一次可编程（OTP）存储器出现多次可编程（MTP）
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申请号： US13859612申请日： 2013-04-09
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公开(公告)号： US08898425B1公开(公告)日： 2014-11-25
- 发明人: Seth Pollack , Chad A. Lindhorst
- 申请人： Synopsys, Inc.
- 申请人地址： US CA Mountain View
- 专利权人： Synopsys, Inc.
- 当前专利权人： Synopsys, Inc.
- 当前专利权人地址： US CA Mountain View
- 代理机构： Fenwick & West LLP
- 主分类号： G06F13/00
- IPC分类号： G06F13/00 ; G06F12/02
摘要：
Memory management units (MMUs) are disclosed. In one aspect, an MMU may have a first interface to a component. The first interface may receive one of a read of updated data from, and a write of updated data to, a virtual memory address. The virtual memory address may initially correspond to a first physical memory location in an only one time programmable (OTP) non-volatile memory (NVM). The MMU may have a remapping unit to remap a correspondence of the virtual memory address from the first physical memory location to a spare physical memory location. The MMU may also have a second interface to the OTP.NVM. The second interface may allow the updated data to be read from or written to the spare physical memory location of the OTP NVM. Methods performed by the MMUs, and methods and articles useful for manufacturing MMUs, are also disclosed.
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