| 전자부품 데이터시트 검색엔진 |
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C511 데이터시트(PDF) 22 Page - Siemens Semiconductor Group |
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C511 데이터시트(HTML) 22 Page - Siemens Semiconductor Group |
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22 / 43 page ![]() Semiconductor Group 22 C511 / C513 Timer / Counter 2 (not available in the C511/C511A) Timer 2 is a 16-bit Timer/Counter with up/down count feature. It can operate either as timer or as an event counter which is selected by bit C/T2 (T2CON.1). It has three operating modes as shown in table 8. Table 8 Timer/Counter 2 Operating Modes Note: ↓ = falling edge Mode T2CON T2MOD DCEN T2CON EXEN P1.1/ T2EX Remarks Input Clock R ×CLK or T ×CLK CP/ RL2 TR2 internal external (P1.0/T2) 16-bit Auto- reload 0 0 0 0 0 0 0 0 1 1 1 1 0 0 1 1 0 1 X X X ↓ 0 1 reload upon overflow reload trigger (falling edge) Down counting Up counting f OSC/12 max f OSC/24 16-bit Cap- ture 0 0 1 1 1 1 X X 0 1 X ↓ 16-bit Timer/ Counter (only up-counting) capture TH2, TL2 → RC2H, RC2L f OSC/12 max f OSC/24 Baud Rate Gene- rator 1 1 X X 1 1 X X 0 1 X ↓ no overflow interrupt request (TF2) extra external interrupt (“Timer 2”) f OSC/2 max f OSC/24 off X X 0 X X X Timer 2 stops – – |
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