flow: design: ihp-sg13g2: i2c-gpio-expander: Improve PDN#3986
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dnltz wants to merge 3 commits intoThe-OpenROAD-Project:masterfrom
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flow: design: ihp-sg13g2: i2c-gpio-expander: Improve PDN#3986dnltz wants to merge 3 commits intoThe-OpenROAD-Project:masterfrom
dnltz wants to merge 3 commits intoThe-OpenROAD-Project:masterfrom
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dnltz
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Mar 12, 2026
dnltz
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- remove add_global_connect for padframe from the macro
- Move I2cDeviceCtrl macro slightly for better via connection
- Increase pdn_stripe width for macro and chip-level PDN
- Decrease pdn stripe pitch and offset
…ct from macro There should be no add_global_connect for the padframe in a macro cell. Signed-off-by: Daniel Schultz <dnltz@aesc-silicon.de>
Move the I2cDeviceCtrl macro slightly to the left for better connection between the macron on M5 and the chip-level TM1 pdn. Signed-off-by: Daniel Schultz <dnltz@aesc-silicon.de>
Move the power ground ring from TM1+TM2 to M5+TM1. The connection between the IO ring and PGR will be estabilished with strips on TM2. When the PGR is using TM2, it won't have any connection to the IO cells on the north and south side because the connection strips won't need vias to connect to the PGR. Also increase the power strips width for the chip-level and macro power distribution netweek. Additionally, decrease the pitch and offset. Signed-off-by: Daniel Schultz <dnltz@aesc-silicon.de>
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maliberty
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Mar 12, 2026
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