Analog Devices ADSP-SC58 Series Hardware Reference Manual page 35

Register Access........................................................................................................................................ 22–10
ADSP-SC58x RTC Register Descriptions ................................................................................................. 22–11
RTC Alarm Register .............................................................................................................................. 22–12
RTC Clock Register ............................................................................................................................... 22–13
Interrupt Enable Register ...................................................................................................................... 22–14
RTC Initialization Register .................................................................................................................... 22–16
RTC Initialization Status Register ......................................................................................................... 22–17
RTC Status Register .............................................................................................................................. 22–18
RTC Stop Watch Register ...................................................................................................................... 22–21
General-Purpose Counter (CNT)
GP Counter Features ................................................................................................................................... 23–1
GP Counter Functional Description ............................................................................................................ 23–2
ADSP-SC58x CNT Register List.............................................................................................................. 23–2
ADSP-SC58x CNT Interrupt List ........................................................................................................... 23–3
ADSP-SC58x CNT Trigger List ............................................................................................................... 23–3
GP Counter Operating Modes..................................................................................................................... 23–3
Quadrature Encoder Mode ....................................................................................................................... 23–4
Binary Encoder Mode............................................................................................................................... 23–4
Up/Down Counter Mode ......................................................................................................................... 23–5
Direction Counter Mode .......................................................................................................................... 23–5
Timed Direction Mode............................................................................................................................. 23–5
GP Counter Programming Model ............................................................................................................... 23–5
GP Counter General Programming Flow ................................................................................................. 23–5
GP Counter Mode Configuration............................................................................................................. 23–6
Configuring GP Counter Push-Button Operation ................................................................................ 23–6
Configuring Zero-Marker-Zeros-Counter Mode ................................................................................... 23–6
Configuring Zero-Marker-Error Mode .................................................................................................. 23–6
Configuring Zero-Once Mode............................................................................................................... 23–7
Configuring Boundary Auto-Extend Mode ........................................................................................... 23–7
Configuring Boundary Capture Mode................................................................................................... 23–7
ADSP-SC58x/ADSP-2158x SHARC+ Processor Hardware Reference xxxv