Pelatihan Mikrokontroller
15 Januari 2011

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Programmer and Target 89s51

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3.3. Timer/ Counter Mode 2 : 8 bit Auto Reload

Mode 2 configures the Timer register as an 8-bit Counter (TL1) with automatic reload, as shown in Figure 9. Overflow from TL1 not only sets TF1, but also reloads TL1 with the contents of TH1, which is preset by software. The reload leaves TH1 unchanged.

Figure 3.3. Timer/Counter Mode 1: 16-Bit Counter

Mode 2 operation is the same for Timer/Counter 0.

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