12 8-BIT TIMER (T8F)
S1C17001 TECHNICAL MANUAL
EPSON
131
12.7 8-bit Timer Output Signal
The 8-bit timer outputs underflow pulses when the counter underflows.
These pulses are used for timer interrupt requests.
Underflow signal
Timer output
(serial transfer clock)
Interrupt request to ITC
Figure 12.7.1: Timer output clock
The underflow pulses are also used to generate the serial transfer clock and are transmitted to the UART.
Use the following equations to calculate the reload data register value for obtaining the desired transfer rate.
clk_in
bps = —————————————
{( 1) × 16 + TFMD}
clk_in
T8F_TR =
(
——— - TFMD - 16
)
÷
16
bps
clk_in: Count clock (prescaler output clock) frequency [Hz]
T8F_TR: Reload data (0 to 255)
bps:
Transfer rate (bit/s)
TFMD: Fine mode setting (0 to15)
Содержание S1C17001
Страница 1: ...Technical Manual S1C17001 CMOS 16 BIT SINGLE CHIP MICROCONTROLLER ...
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Страница 33: ...4 POWER SUPPLY VOLTAGE 24 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
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Страница 87: ...8 CLOCK GENERATOR CLG 78 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 91: ...9 PRESCALER PSC 82 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
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Страница 185: ...14 8 BIT OSC1 TIMER T8OSC1 176 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 211: ...16 STOPWATCH TIMER SWT 202 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
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