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GMS87C1102 Datasheet(PDF) 41 Page - Hynix Semiconductor |
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GMS87C1102 Datasheet(HTML) 41 Page - Hynix Semiconductor |
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41 / 80 page ![]() HYUNDAI MicroElectronics GMS87C1102 / GMS87C1202 Oct. 1999 ver 1.0 41 15.1 8-bit Timer/Counter Mode The GMS87C1202 has two 8-bit Timer/Counters, Timer 0 and Timer 1, as shown in Figure 15-2 . The "timer" or "counter" function is selected by mode reg- isters TM0, TM1 as shown in Figure 15-1 and Table 15-1 . To use as an 8-bit timer/counter mode, bit CAP0 of TM0 is cleared to "0" and bits 16BIT of TM1 should be cleared to “0”(Table 15-1). Figure 15-2 8-bit Timer / Counter Mode 16BIT CAP0 CAP1 PWME T0CK[2:0] T1CK[1:0] PWMO1 TIMER 0 TIMER1 0 0 0 0 XXX XX 0 8-bit Timer 8-bit Timer 0 0 1 0 111 XX 0 8-bit Event Counter 8-bit Capture 0 1 0 0 XXX XX 1 8-bit Capture 8-bit Compare output 0 0 0 1 XXX XX 1 8-bit Timer/Counter 10-bit PWM 1 000 XXX 11 0 16-bit Timer 1 000 111 11 0 16-bit Event Counter 11 X2 0XXX 11 0 16-bit Capture 1 000 XXX 11 1 16-bit Compare output Table 15-1 Operating Modes of Timer 0 and Timer 1 1. This bit is the bit4 of RB Function register(RBFUNC). 2. X : The value is “0” or “1” corresponding your operation. ÷ 1 ÷ 2 ÷ 8 TM0 ADDRESS : D0H RESET VALUE : --000000 - - CAP0 T0CK2 T0CK1 T0CK0 T0CN T0ST TM1 ADDRESS : D2H RESET VALUE : 00000000 POL 16BIT PWME CAP1 T1CK1 T1CK0 T1CN T1ST -- 0 XXXXX X 000 XXXX ÷ 2 ÷ 4 ÷ 128 ÷ 512 ÷ 8 ÷ 32 fxin EC0 Edge Detector MUX MUX 1 1 T0 ( 8-bit ) TDR0 ( 8-bit ) T0IF CLEAR COMPARATOR TIMER 0 INTERRUPT T1 ( 8-bit ) TDR1 ( 8-bit ) T1IF CLEAR COMPARATOR TIMER 1 INTERRUPT T0ST 0 : Stop 1 : Clear and Start T1ST 0 : Stop 1 : Clear and Start T0CN T1CN T0CK[2:0] T1CK[1:0] F/F COMP0 PIN ÷ 2048 X : The value "0" or "1" corresponding your operation. |
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