2-31. System Control Port B (Hex 0061, Read) ...... 2-27
2-32. System Control Port A (Hex 0092) .......... 2-28
2-33. Error Codes . . . . . . . . . . . . . . . . . . . . . . . . 2-31
3-1. PCMCIA Standards and Specifications ......... 3-8
3-2. PCMCIA PC Card Slot Pin Assignments ........ 3-9
Tables
3-1. BIOS Video Modes for the ThinkPad Computer .... 3-4
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