Renesas H8S/2161BV
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Renesas H8S/2161B (H8S/2140B group)
The Renesas H8S/2161B is the embedded controller chip found in T43 and T43p models. It controls various low-bandwidth devices such as keyboard, mouse, fan, LEDs, thermal sensors, Active Protection System accelerometer, battery status and switches.
Documentation
- Renesas H8S/2140B group Hardware manual
- Renesas H8S/2600 series, H8S/2000 series software manual
- Renesas H8S series Technical Q&A application note
- A partial disassembly of the firmware running on this embedded controller is available in this thread.
ATTENTION!
The Flash-RAM of the H8S/2161B is rated for just 100 write cycles
Models containing this chip
It is likely that all other ThinkPads with an embedded controller use the same chip.
Photos
| Photos (click to see full size) |
