CONEXANT SYSTEMS, INC. Reconciliation of GAAP Financial Measures to Non-GAAP Core Financial Measures (unaudited, in thousands, except per share amounts) Fiscal Quarter Ended ---------------------------------------- December 28, September 28, December 29, 2007 2007 2006 ---------------------------------------- GAAP gross margin $ 99,271 $ 80,948 $109,489 Stock-based compensation (a) 114 112 103 Other (f) -- 1,211 -- ---------------------------------------- Non-GAAP Core gross margin 99,385 82,271 109,592 Royalty buyout (l) (14,700) -- -- ---------------------------------------- Non-GAAP Core gross margin less impact of royalty buyout $ 84,685 $ 82,271 $109,592 ======================================== GAAP operating expenses $ 94,186 $ 319,158 $108,062 Stock-based compensation (a) (3,170) (4,632) (4,234) Transitional salaries and benefits (b) -- (620) (740) Amortization of intangible assets (c) (4,781) (4,784) (6,238) Asset impairments (d) (130) (192,498) -- Special charges (e) (5,784) (26,359) (2,898) Other (f) -- -- (400) ---------------------------------------- Non-GAAP Core operating expenses $ 80,321 $ 90,265 $ 93,552 ======================================== GAAP operating income (loss) $ 5,085 $(238,210) $ 1,427 Gross margin adjustment (a) 114 1,323 103 Operating expense adjustments (a-f) 13,865 228,893 14,510 ---------------------------------------- Non-GAAP Core operating income (loss) 19,064 (7,994) 16,040 Royalty buyout (l) (14,700) -- -- ---------------------------------------- Non-GAAP Core operating income (loss) less impact of royalty buyout $ 4,364 $ (7,994) $ 16,040 ======================================== GAAP net (loss) income $ (9,218) $(234,765) $ 976 Gross margin adjustments (a, f) 114 1,323 103 Operating expense adjustments (a-f) 13,865 228,893 14,510 (Gains) losses of equity method investments (g) (3,773) (6,988) (4,696) Unrealized losses (gains) on Mindspeed warrant (h) 8,364 8,820 (3,042) Gains on sales of equity securities (i) -- (10,446) (431) Other (j) -- (5,324) -- ---------------------------------------- Non-GAAP Core net income (loss) $ 9,352 $ (18,487) $ 7,420 ======================================== Basic (loss) per share: GAAP $ (0.02) $ (0.48) $ 0.00 ======================================== Non-GAAP Core $ 0.02 $ (0.04) $ 0.02 ======================================== Diluted net income (loss) per share: GAAP $ (0.02) $ (0.48) $ 0.00 ======================================== Non-GAAP Core (k) $ 0.02 $ (0.03) $ 0.02 ======================================== See "GAAP to Non-GAAP Core Adjustments" below