MC68HC08XL36 Datasheet, PDF (165/362 Pages) Freescale Semiconductor, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Timer Interface Module (TIM)
Pin Name Conventions
Pin Name Conventions
The generic names of the TIM I/O pins are:
• TCLK (TIM external clock input pin)
• TCH0 (TIM channel 0 I/O pin)
• TCH1 (TIM channel 1 I/O pin)
• TCH2 (TIM channel 2 I/O pin)
• TCH3 (TIM channel 3 I/O pin)
TIM pins are shared by parallel I/O ports. The full name of a TIM pin
reflects the name of the shared port pin. The generic pin names appear
in the text that follows. Table 1 shows the full names of the TIM I/O pins.
Table 1. Pin Name Conventions
Generic
Pin Names
TCLK
Full
Pin Names
PE3/TCLK
TCH0
PE4/TCH0
TCH1
PE5/TCH1
TCH2
PE6/TCH2
TCH3
PE7/TCH3
Functional Description
Figure 1 shows the structure of the TIM. The central component of the
TIM is the 16-bit TIM counter that can operate as a free-running counter
or a modulo up-counter. The TIM counter provides the timing reference
for the input capture and output compare functions. The TIM counter
modulo registers, TMODH:TMODL, control the modulo value of the TIM
counter. Software can read the TIM counter value at any time without
affecting the counting sequence.
The four TIM channels are programmable independently as input
capture or output compare channels.
3-tim4_b
MOTOROLA
Timer Interface Module (TIM)
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MC68HC08XL36
165