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MB90480 Datasheet(PDF) 56 Page - Fujitsu Component Limited. |
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MB90480 Datasheet(HTML) 56 Page - Fujitsu Component Limited. |
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56 / 120 page 
MB90480/485 Series 56 (3) Input Capture The input capture module performs the functions of detecting the rising edge, falling edge, or both edges of signal input from external circuits, and saving the 16-bit free run timer value at that moment to a register. An interrupt can also be generated at the instant of edge detection. The input capture module consists of input capture registers and a control register. Each input capture module has its own external input pin. • Selection of three types of valid edge for external input signals. Rising edge, falling edge, both edges. • An interrupt can be generated when a valid edge is detected in the external input signal. • Register List •Block Diagram Input capture data register (IPCP0, IPCP1) Input capture control status register (ICS01) Initial value 00005DH 00005FH XXXXXXXXB Initial value 00005CH 00005EH XXXXXXXXB Initial value 000060H 00000000B 15 14 13 12 11 10 9 8 RR R R R R R R CP14 CP15 CP13 CP12 CP11 CP10 CP09 CP08 76 5 4 3 2 1 0 RR R R R R R R CP06 CP07 CP05 CP04 CP03 CP02 CP01 CP00 76 5 4 3 2 1 0 R/W R/W R/W R/W R/W R/W R/W R/W ICP0 ICP1 ICE1 ICE0 EG11 EG10 EG01 EG00 IN0 EG11 EG10 EG01 EG00 ICP1 ICP0 ICE1 ICE0 IN1 Capture data register 0 16-bit timer counter value (T15 to T00) Capture data register 1 Edge detection Edge detection Interrupt Interrupt |
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