Sorry, I get the wrong info. My current tREFI is 3.9us, tXS is 360ns, tRFC is 350ns.
李翼超（Charlie） 华为技术有限公司 Huawei Technologies Co., Ltd. 部门：计算系统与组件开发部 [云与计算BG] 手 机：15858232899 电子邮件：liyic...@huawei.com 地址：中国(China)-杭州(Hangzhou)-滨江区江淑路360号华为杭州研发中心Z4# [3-A06] 本邮件及其附件含有华为公司的保密信息，仅限于发送给上面地址中列出的个人或群组。禁 止任何其他人以任何形式使用（包括但不限于全部或部分地泄露、复制、或散发）本邮件中 的信息。如果您错收了本邮件，请您立即电话或邮件通知发件人并删除本邮件！ This e-mail and its attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! -----邮件原件----- 发件人: lsteiner--- via gem5-users [mailto:gem5-users@gem5.org] 发送时间: 2021年4月19日 21:27 收件人: gem5-users@gem5.org 抄送: lstei...@rhrk.uni-kl.de 主题: [gem5-users] Re: DRAMCTRL self-refresh frequency The refresh rate is determined by the parameter tREFI in "mem/DRAMInterface.py". However, if you want a refresh rate of 64 ms you cannot simply set tREFI to 64 ms. tREFI is the time between two refresh commands, while 64 ms usually is the time between two refresh commands to the same DRAM cell. Depending on the selected device size and temperature range you have to set different values for tREFI and tRFC. You can find more information in the JEDEC standard for DDR4. The self-refresh frequency is not determined by the DRAM controller, but by the DRAM device itself. This parameter cannot be modified via configuration. The only parameter you can modify is tXS (self-refresh exit time). For more information you should also take a look at the JEDEC standard. _______________________________________________ gem5-users mailing list -- gem5-users@gem5.org To unsubscribe send an email to gem5-users-le...@gem5.org %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s _______________________________________________ gem5-users mailing list -- gem5-users@gem5.org To unsubscribe send an email to gem5-users-le...@gem5.org %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s
