Section 8
8-Bit PWM Timer (PWMU)
Rev. 1.00 Apr. 28, 2008 Page 217 of 994
REJ09B0452-0100
8.5 Usage
Note
8.5.1
Setting Module Stop Mode
The module stop control register can be used to enable or disable PWMU operation. The default
setting disables PWMU operation. Clearing the module stop mode enables registers to be
accessed. For details, see section 26, Power-Down Modes.
8.5.2
Note on Using 16-Bit Single-Pulse PWM Timer
When the duty cycle is to be changed in usage of a 16-bit single-pulse PWM timer, the higher- and
lower-order eight bits must be individually written to the respective PWMREGn (n = 0 to 5)
registers. There will thus be a time lag between the write operations, and this may lead to the
output of a pulse waveform with a duty cycle other than the intended one during the corresponding
period.
Also, care must be taken to ensure that there are no interrupts while writing to PWMREGn is in
progress, since interrupt processing can lead to the continued output of pulses with a duty cycle
other than the intended one.
Summary of Contents for H8S/2100 Series
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Page 54: ...Section 1 Overview Rev 1 00 Apr 28 2008 Page 28 of 994 REJ09B0452 0100...
Page 92: ...Section 2 CPU Rev 1 00 Apr 28 2008 Page 66 of 994 REJ09B0452 0100...
Page 158: ...Section 5 Interrupt Controller Rev 1 00 Apr 28 2008 Page 132 of 994 REJ09B0452 0100...
Page 244: ...Section 8 8 Bit PWM Timer PWMU Rev 1 00 Apr 28 2008 Page 218 of 994 REJ09B0452 0100...
Page 330: ...Section 10 16 Bit Timer Pulse Unit TPU Rev 1 00 Apr 28 2008 Page 304 of 994 REJ09B0452 0100...
Page 416: ...Section 13 8 Bit Timer TMR Rev 1 00 Apr 28 2008 Page 390 of 994 REJ09B0452 0100...
Page 612: ...Section 18 I 2 C Bus Interface IIC Rev 1 00 Apr 28 2008 Page 586 of 994 REJ09B0452 0100...
Page 706: ...Section 20 LPC Interface LPC Rev 1 00 Apr 28 2008 Page 680 of 994 REJ09B0452 0100...
Page 752: ...Section 21 FSI Interface Rev 1 00 Apr 28 2008 Page 726 of 994 REJ09B0452 0100...
Page 774: ...Section 23 RAM Rev 1 00 Apr 28 2008 Page 748 of 994 REJ09B0452 0100...
Page 1008: ...Section 28 Electrical Characteristics Rev 1 00 Apr 28 2008 Page 982 of 994 REJ09B0452 0100...
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