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C161 Datasheet(PDF) 193 Page - Infineon Technologies AG |
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C161 Datasheet(HTML) 193 Page - Infineon Technologies AG |
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193 / 400 page  &3, 7KH*HQHUDO 3XUSRVH 7LPHU8QLWV User’s Manual 10-1 1999-08 10 The General Purpose Timer Units The General Purpose Timer Units GPT1 and GPT2 represent very flexible multifunctional timer structures which may be used for timing, event counting, pulse width measurement, pulse generation, frequency multiplication, and other purposes. They incorporate five 16-bit timers that are grouped into the two timer blocks GPT1 and GPT2. Block GPT1 contains 3 timers/counters with a maximum resolution of 16 TCL, while block GPT2 contains 2 timers/counters with a maximum resolution of 8 TCL and a 16-bit Capture/Reload register (CAPREL). Each timer in each block may operate independently in a number of different modes such as gated timer or counter mode, or may be concatenated with another timer of the same block. The auxiliary timers of GPT1 may optionally be configured as reload or capture registers for the core timer. In the GPT2 block, the additional CAPREL register supports capture and reload operation with extended functionality. Each block has alternate input/output functions and specific interrupts associated with it. 10.1 Timer Block GPT1 From a programmer’s point of view, the GPT1 block is composed of a set of SFRs as summarized below. Those portions of port and direction registers which are used for alternate functions by the GPT1 block are shaded. Figure 10-1 SFRs and Port Pins Associated with Timer Block GPT1 T3 T2 P5 T4IC T2 GPT1 Timer 2 Register T3 GPT1 Timer 3 Register T4 GPT1 Timer 4 Register T2IC GPT1 Timer 2 Interrupt Control Register T3IC GPT1 Timer 3 Interrupt Control Register T4IC GPT1 Timer 4 Interrupt Control Register T2IN/P3.7 T2EUD/P5.15 T3IN/P3.6 T3EUD/P3.4 T4IN/P3.5 T4EUD/P5.14 T3OUT/P3.3 T2CON Ports & Direction Control Alternate Functions Data Registers Control Registers Interrupt Control T2IC DP3 P3 T4 T3IC T3CON T4CON ODP3 Port 3 Open Drain Control Register DP3 Port 3 Direction Control Register P3 Port 3 Data Register T2CON GPT1 Timer 2 Control Register T3CON GPT1 Timer 3 Control Register T4CON GPT1 Timer 4 Control Register ODP3 |
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