S9S12G128F0VLL Freescale Semiconductor, S9S12G128F0VLL Datasheet - Page 772

• Manufacturer Part Number: S9S12G128F0VLL
• Description: 16-bit Microcontrollers - MCU 16BIT 128K FLASH
• Manufacturer: Freescale Semiconductor

Specifications of S9S12G128F0VLL

• Rohs: yes
• Core: S12
• Processor Series: MC9S12G
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 1 MHz
• Program Memory Size: 128 KB
• Data Ram Size: 8 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3.13 V to 5.5 V
• Operating Temperature Range: - 40 C to + 125 C
• Package / Case: LQFP-100
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit, 12 bit
• A/d Channels Available: 12
• Interface Type: SPI
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 86
• Number Of Timers: 8
• Program Memory Type: Flash
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 3.13 V

Timer Module (TIM16B8CV3)
23.4.1
The prescaler divides the bus clock by 1, 2, 4, 8, 16, 32, 64 or 128. The prescaler select bits, PR[2:0], select
the prescaler divisor. PR[2:0] are in timer system control register 2 (TSCR2).
The prescaler divides the bus clock by a prescalar value. Prescaler select bits PR[2:0] of in timer system
control register 2 (TSCR2) are set to define a prescalar value that generates a divide by 1, 2, 4, 8, 16, 32,
64 and 128 when the PRNT bit in TSCR1 is disabled.
By enabling the PRNT bit of the TSCR1 register, the performance of the timer can be enhanced. In this
case, it is possible to set additional prescaler settings for the main timer counter in the present timer by
using PTPSR[7:0] bits of PTPSR register generating divide by 1, 2, 3, 4,....20, 21, 22, 23,......255, or 256.
23.4.2
Clearing the I/O (input/output) select bit, IOSx, configures channel x as an input capture channel. The
input capture function captures the time at which an external event occurs. When an active edge occurs on
the pin of an input capture channel, the timer transfers the value in the timer counter into the timer channel
registers, TCx.
The minimum pulse width for the input capture input is greater than two bus clocks.
An input capture on channel x sets the CxF flag. The CxI bit enables the CxF flag to generate interrupt
requests. Timer module or Pulse Accumulator must stay enabled (TEN bit of TSCR1 or PAEN bit of
PACTL register must be set to one) while clearing CxF (writing one to CxF).
23.4.3
Setting the I/O select bit, IOSx, configures channel x when available as an output compare channel. The
output compare function can generate a periodic pulse with a programmable polarity, duration, and
frequency. When the timer counter reaches the value in the channel registers of an output compare channel,
the timer can set, clear, or toggle the channel pin if the corresponding OCPDx bit is set to zero. An output
compare on channel x sets the CxF flag. The CxI bit enables the CxF flag to generate interrupt requests.
Timer module or Pulse Accumulator must stay enabled (TEN bit of TSCR1 or PAEN bit of PACTL register
must be set to one) while clearing CxF (writing one to CxF).
The output mode and level bits, OMx and OLx, select set, clear, toggle on output compare. Clearing both
OMx and OLx results in no output compare action on the output compare channel pin.
Setting a force output compare bit, FOCx, causes an output compare on channel x. A forced output
compare does not set the channel flag.
A channel 7 event, which can be a counter overflow when TTOV[7] is set or a successful output compare
on channel 7, overrides output compares on all other output compare channels. The output compare 7 mask
register masks the bits in the output compare 7 data register. The timer counter reset enable bit, TCRE,
enables channel 7 output compares to reset the timer counter. A channel 7 output compare can reset the
timer counter even if the IOC7 pin is being used as the pulse accumulator input.
774
Prescaler
Input Capture
Output Compare
MC9S12G Family Reference Manual,
Rev.1.23
Freescale Semiconductor