saa-xc866 Infineon Technologies Corporation, saa-xc866 Datasheet - Page 79

• Manufacturer Part Number: saa-xc866
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Infineon Technologies Corporation

3.15
Timers 0 and 1 are count-up timers which are incremented every machine cycle, or in
terms of the input clock, every 2 PCLK cycles. They are fully compatible and can be
configured in four different operating modes for use in a variety of applications, see
Table
functions are specialized.
Table 28
Mode
0
1
2
3
Data Sheet
28. In modes 0, 1 and 2, the two timers operate independently, but in mode 3, their
Timer 0 and Timer 1
Operation
13-bit timer
The timer is essentially an 8-bit counter with a divide-by-32 prescaler.
This mode is included solely for compatibility with Intel 8048 devices.
16-bit timer
The timer registers, TLx and THx, are concatenated to form a 16-bit
counter.
8-bit timer with auto-reload
The timer register TLx is reloaded with a user-defined 8-bit value in THx
upon overflow.
Timer 0 operates as two 8-bit timers
The timer registers, TL0 and TH0, operate as two separate 8-bit counters.
Timer 1 is halted and retains its count even if enabled.
Timer 0 and Timer 1 Modes
75
Functional Description
SAA-XC866
V1.2, 2008-02