I have these books on ebay.
From The Engineering Staff of Texas Instruments Inc Semiconductor Group & Learning Center
6 Books;
9900 Family Systems Design and Data Book 1st Edition ISBN 0-89512-026-7
9900 Family Software TM 990 Power Basic Reference Manual Microprocessor Series 1978
TM 990 Microcomputer Handbook Microprocessor Series July 1979
TM 990 Microcomputer Handbook April 1977 with 18 pages
TMS 9911 Direct Memory Access Controller May 1978 with 39 pages
TMS 9940 16-Bit Microcomputer Data Manual July 1978 with 39 pages