发明名称 |
Calibration schemes for charge-recycling stacked voltage domains |
摘要 |
A method and system are disclosed for calibrating a mid-voltage node in an integrated circuit including an input-output circuit having charge-recycling stacked voltage domains including at least first and second voltage domains. In one embodiment, the method comprises transmitting data through the input-output circuit, including transmitting a first portion of the data across the first voltage domain, and transmitting a second portion of the data across the second voltage domain. The method further comprises measuring a specified characteristic of the data transmitted through the input-output circuit; and based on the measured specified characteristic, adjusting a voltage of said mid-voltage node to a defined value. The voltage of the mid-voltage node may be adjusted to accomplish a number of objectives, for example, to achieve a desired trade-off between power and performance, or so that the two voltage domains have the same performance. |
申请公布号 |
US8797084(B2) |
申请公布日期 |
2014.08.05 |
申请号 |
US201213601240 |
申请日期 |
2012.08.31 |
申请人 |
International Business Machines Corporation |
发明人 |
Friedman Daniel;Liu Yong;Tierno Jose A. |
分类号 |
H03L5/00;H03K5/08 |
主分类号 |
H03L5/00 |
代理机构 |
Scully Scott Murphy & Presser PC |
代理人 |
Scully Scott Murphy & Presser PC ;Dougherty, Esq. Anne V. |
主权项 |
1. A method of calibrating a mid-voltage node in an integrated circuit including an input-output circuit having charge-recycling stacked voltage domains including at least first and second voltage domains, the method comprising:
transmitting data through the input-output circuit, including transmitting a first portion of the data across the first voltage domain, and transmitting a second portion of the data across the second voltage domain; measuring a specified characteristic of the data transmitted through the input-output circuit; and based on the measured specified characteristic, adjusting a voltage of said mid-voltage node to a defined value. |
地址 |
Armonk NY US |