TC1912 Datasheet, PDF (31/68 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1912
PRELIMINARY
Features of T2:
• Optionally count up or down
• Operating modes:
– Timer
– Counter
– Incremental Interface Mode
• Options:
– External start/stop, one-shot operation, timer clear on external event
– Count direction control through software or an external event
– Two 32-bit reload/capture registers
• Reload modes:
– Reload on overflow or underflow
– Reload on external event: positive transition, negative transition, or both transitions
• Capture modes:
– Capture on external event: positive transition, negative transition, or both
transitions
– Capture and clear timer on external event: positive transition, negative transition, or
both transitions
• Can be split into two 16-bit counter/timers
• Timer count, reload, capture, and trigger functions can be assigned to input pins. T0
and T1 overflow events can also be assigned to these functions.
• Overflow and underflow signals can be used to trigger T0 and/or T1 and to toggle
output pins
• T2 events are freely assignable to the service request nodes.
Real Time Clock Unit RTC
The Real Time Clock (RTC) module is basically an independent timer chain and counts
clock ticks. The base frequency of the RTC can be programmed via a reload counter.
The RTC can work fully asynchronous to the system frequency and is optimized on low
power consumption.
Features:
The RTC serves different purposes:
• Absolute system clock to determine the current time and date
• Cyclic time based interrupt
• Alarm interrupt for wake up on a defined time
• 48-bit timer for long term measurements
Data Sheet
27
V 1.0, 2003-10