mc68hc908ld64 Freescale Semiconductor, Inc, mc68hc908ld64 Datasheet - Page 166

• Manufacturer Part Number: mc68hc908ld64
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Timer Interface Module (TIM)
Data Sheet
166
CHxIE — Channel x Interrupt Enable Bit
MSxB — Mode Select Bit B
MSxA — Mode Select Bit A
an output compare channel, CHxF is set when the value in the TIM
counter registers matches the value in the TIM channel x registers.
When TIM CPU interrupt requests are enabled (CHxIE=1), clear
CHxF by reading the TIM channel x status and control register with
CHxF set and then writing a logic zero to CHxF. If another interrupt
request occurs before the clearing sequence is complete, then writing
logic zero to CHxF has no effect. Therefore, an interrupt request
cannot be lost due to inadvertent clearing of CHxF.
Reset clears the CHxF bit. Writing a logic one to CHxF has no effect.
This read/write bit enables TIM CPU interrupt service requests on
channel x. Reset clears the CHxIE bit.
This read/write bit selects buffered output compare/PWM operation.
MSxB exists only in the TIM channel 0 status and control register.
Setting MS0B disables the channel 1 status and control register and
reverts TCH1 to general-purpose I/O.
Reset clears the MSxB bit.
When ELSxB:A ≠ 0:0, this read/write bit selects either input capture
operation or unbuffered output compare/PWM operation.
See
When ELSxB:A = 0:0, this read/write bit selects the initial output level
of the TCHx pin. (See
1 = Input capture or output compare on channel x
0 = No input capture or output compare on channel x
1 = Channel x CPU interrupt requests enabled
0 = Channel x CPU interrupt requests disabled
1 = Buffered output compare/PWM operation enabled
0 = Buffered output compare/PWM operation disabled
1 = Unbuffered output compare/PWM operation
0 = Input capture operation
1 = Initial output level low
0 = Initial output level high
Table
Timer Interface Module (TIM)
11-3.
Table
11-3.) Reset clears the MSxA bit.
MC68HC908LD64
Freescale Semiconductor
—
Rev. 3.0