W79E825A Datasheet, PDF (72/127 Pages) Winbond – 8-BIT MICROCONTROLLER

W79E825A/824A/823B/822B Data Sheet
Figure 13-1: Timer/Counters 0 & 1 in Mode 0
13.1.3 Mode 1
Mode 1 is similar to Mode 0 except that the counting register forms a 16-bit counter, rather than a 13-
bit counter. This means that all the bits of THx and TLx are used. Roll-over occurs when the timer
moves from a count of FFFFh to 0000h. The timer overflow flag TFx of the relevant timer is set and if
enabled an interrupt will occur. The selection of the time-base in the timer mode is similar to that in
Mode 0. The gate function operates similarly to that in Mode 0.
Figure 13-2: Timer/Counters 0 & 1 in Mode 1
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