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The ThinkPad Embedded Controller

This page contains information about Embedded Controller (also known as slave controller) chips found in ThinkPads.

Apparently H8S microcontrollers have been used on all ThinkPads since the A30, T23, R40, X20.

The Microchip MEC1633-series Embedded Controllers can be found in newer ThinkPads, including the following:

Used on older ThinkPads, including the model 570, and maybe even earlier models. IBM called them Slave Controllers.

Used on ancient ThinkPads.

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 {{Stub}}
-This page contains information about Embedded Controller chips found in ThinkPads.
-*[[Renesas H8S/2161BV]] <tt>(T43, T43p)</tt>
+= The ThinkPad Embedded Controller =
+This page contains information about Embedded Controller (also known as slave controller) chips found in ThinkPads.
+*Renesas H8
+:*{{T20}}: H8/3437 ; 64F3437TF16 JAPAN (sticker label 08K3766 REV 11)
+*Renesas H8S
+:Apparently H8S microcontrollers have been used on all ThinkPads since the A30, T23, R40, X20.
+:*{{T43}}, {{T43p}}, {{X41 Tablet}}, {{Z60t}}: [[Renesas H8S/2161BV]]
+:*{{A31}}, {{T23}}, {{X22}}: Renesas H8S/2169AV
+:*{{T60}}, {{T61p}}, {{T500}}, {{X60}}: [[Renesas H8S/2116V]]
+:*{{T510}}: R4F212 H8S ([http://forum.thinkpads.com/viewtopic.php?f=45&t=121726&p=785696#p785696 source])
+*Microchip MEC1633
+:The [[Microchip MEC1633]]-series Embedded Controllers can be found in newer ThinkPads, including the following:
+:*{{T440p}}
+*Unknown chips with field-upgradeable firmware
+:Used on older ThinkPads, including the model 570, and maybe even earlier models.  IBM called them '''Slave Controllers'''.
+*Unknown chips with non-field-upgradeable firmware
+:Used on ancient ThinkPads.
+= See also =
+* [[Embedded Controller Firmware|Embedded controler firmware information and bugs]]
+* [[BIOS Upgrade|BIOS and firmware upgrade information]]
+[[Category:Components]]