Struct lpc845_pac::ctimer0::ctcr::W [−][src]
pub struct W(_);
Expand description
Register CTCR
writer
Implementations
Bits 0:1 - Counter/Timer Mode This field selects which rising APB bus clock edges can increment Timer’s Prescale Counter (PC), or clear PC and increment Timer Counter (TC). Timer Mode: the TC is incremented when the Prescale Counter matches the Prescale Register.
Bits 2:3 - Count Input Select When bits 1:0 in this register are not 00, these bits select which CAP pin is sampled for clocking. Note: If Counter mode is selected for a particular CAPn input in the CTCR, the 3 bits for that input in the Capture Control Register (CCR) must be programmed as 000. However, capture and/or interrupt can be selected for the other 3 CAPn inputs in the same timer.
Bit 4 - Setting this bit to 1 enables clearing of the timer and the prescaler when the capture-edge event specified in bits 7:5 occurs.
Bits 5:7 - Edge select. When bit 4 is 1, these bits select which capture input edge will cause the timer and prescaler to be cleared. These bits have no effect when bit 4 is low. Values 0x2 to 0x3 and 0x6 to 0x7 are reserved.