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13-5
13
MSM66591/ML66592 User's Manual
Chapter 13 PWM Functions
[3]
PWM Registers (PWR0–PWR11)
PWR0–PWR11 are 16-bit registers that store the duty values to output. If PWC0–
PWC11 underflow, the contents of the 16-bit PWM buffer register are loaded to PWR0–
PWR11.
PWR0–PWR11 can be read, but cannot be written, by the program. However, if the
corresponding PWnRUN bit is "0" (stop status), and PW0BF–PW11BF are written to,
the contents of 16 bits are written to PWR0–PWR11 as well.
At reset (when the
RES
signal is input, the BRK instruction is executed, the watchdog
timer is overflown, or an operation code trap is generated), PWR0–PWR11 become
0000H.
[4]
PWM Buffer Registers (PW0BF–PW11BF)
PW0BF–PW11BF are 16-bit registers. If PWC0–PWC11 underflow, the contents of the
PWM buffer register are loaded to the PWM register. PW0BF–PW11BF can be written,
but cannot be read, by the program. If the corresponding PWnRUN bit is "0" (stop
status), and PW0BF–PW11BF are written to, the contents of 16-bits are written to
PWR0–PWR11 as well.
At reset (when the
RES
signal is input, the BRK instruction is executed, the watchdog
timer is overflown, or an operation code trap is generated), PW0BF–PW11BF become
0000H.
[5]
Comparison Circuit
The comparison circuit constantly compares the content of PWC0–PWC11 and that of
PWR0–PWR11 when the corresponding PWnRUN bit is "1". It generates an interrupt
request (PWM0 and PWM1, PWM2 and PWM3, PWM4 and PWM5, PWM6 and PWM7,
PWM8 and PWM9, PWM10 and PWM11 are common) and resets the output F/F if
contents of PWC0–PWC11 and PWR0–PWR11 match.
[6]
Output F/F
The output F/F is set to "1" when the corresponding PWnRUN bit is set to "1", and
when PWC0–PWC11 underflow. The output F/F is set to "0" when the contents of
PWC0–PWC11 and PWR0–PWR11 match.
[7]
PWM Control Registers (PWCON0–PWCON5)
PWCON0–PWCON5 are 8-bit registers that specify the count clock of PWC0–PWC11,
and specify the output logic for PWM0–PWM11. PWCON0 specifies for PWM0 and
PWM1, PWCON1 specifies for PWM2 and PWM3, PWCON2 specifies for PWM4 and
PWM5, PWCON3 for specifies for PWM6 and PWM7, PWCON4 specifies for PWM8
and PWM9, and PWCON5 specifies for PWM10 and PWM11.
Figure 13-2 shows the configuration of PWCON0; Figure 13-3 shows the configuration
of PWCON1; Figure 13-4 shows the configuration of PWCON2; Figure 13-5 shows the
configuration of PWCON3; Figure 13-6 shows the configuration of PWCON4; Figure
13-7 shows the configuration of PWCON5.
At reset (when the
RES
signal is input, the BRK instruction is executed, the watchdog
timer is overflown, or an operation code trap is generated), PWCON0–PWCON5
become 00H, and PWC0–PWC11 select the master clock as the count clock and
PWM0–PWM11 select high active.
Summary of Contents for ML66592
Page 15: ...Contents 12 ...
Page 17: ......
Page 18: ...Overview Chapter 1 1 ...
Page 19: ......
Page 30: ...Description of Pins Chapter 2 2 ...
Page 31: ......
Page 44: ...CPU Architecture Chapter 3 3 ...
Page 45: ......
Page 101: ...3 56 MSM66591 ML66592User sManual Chapter 3 CPU Architecture ...
Page 102: ...CPU Control Functions Chapter 4 4 ...
Page 103: ......
Page 111: ...4 8 MSM66591 ML66592User sManual Chapter 4 CPU Control Functions ...
Page 112: ...Memory Control Functions Chapter 5 5 ...
Page 113: ......
Page 117: ...5 4 MSM66591 ML66592User sManual Chapter 5 Memory Control Functions ...
Page 118: ...Port Functions Chapter 6 6 ...
Page 119: ......
Page 152: ...Output Pin Control Pin OE Chapter 7 7 ...
Page 153: ......
Page 155: ...7 2 MSM66591 ML66592User sManual Chapter 7 Output Pin Control Pin OE ...
Page 156: ...Clock Generation Circuit Chapter 8 8 ...
Page 157: ......
Page 160: ...Time Base Counter TBC Chapter 9 9 ...
Page 161: ......
Page 164: ...Watchdog Timer WDT Chapter 10 10 ...
Page 165: ......
Page 170: ...Flexible Timer FTM Chapter 11 11 11 ...
Page 171: ......
Page 213: ...11 42 MSM66591 ML66592User sManual Chapter 11 Flexible Timer FTM ...
Page 214: ...General Purpose 8 Bit Timer Function Chapter 12 12 ...
Page 215: ......
Page 223: ...12 8 MSM66591 ML66592User sManual Chapter 12 General Purpose 8 Bit Timer Function ...
Page 224: ...PWM Functions Chapter 13 13 ...
Page 225: ......
Page 244: ...Baud Rate Generator Functions Chapter 14 14 ...
Page 245: ......
Page 263: ...14 18 MSM66591 ML66592User sManual Chapter 14 Baud Rate Generator Functions ...
Page 264: ...Serial Port Functions Chapter 15 15 ...
Page 265: ......
Page 348: ...A D Converter Functions Chapter 16 16 ...
Page 349: ......
Page 381: ...16 32 MSM66591 ML66592User sManual Chapter 16 A D Converter Functions ...
Page 382: ...Transition Detector Functions Chapter 17 17 ...
Page 383: ......
Page 387: ...17 4 MSM66591 ML66592User sManual Chapter 17 Transition Detector Functions ...
Page 388: ...Peripheral Functions Chapter 18 18 ...
Page 389: ......
Page 392: ...External Interrupt Request Function Chapter 19 19 ...
Page 393: ......
Page 396: ...Interrupt Request Processing Function Chapter 20 20 ...
Page 397: ......
Page 407: ...20 10 MSM66591 ML66592User sManual Chapter 20 Interrupt Request Processing Function ...
Page 408: ...Bus Port Functions Chapter 21 21 ...
Page 409: ......
Page 413: ...21 4 MSM66591 ML66592User sManual Chapter 21 Bus Port Functions ...
Page 414: ...Expansion Port Chapter 22 22 ...
Page 415: ......
Page 420: ...Serial Port with FIFO SCI5 Chapter 23 23 ...
Page 421: ......
Page 431: ...23 10 MSM66591 ML66592User sManual Chapter 23 Serial Port with FIFO SCI5 ...
Page 432: ...RAM Monitor Function Chapter 24 24 ...
Page 433: ......
Page 441: ...24 8 MSM66591 ML66592User sManual Chapter 24 RAM Monitor Function ...
Page 442: ...25 Electrical Characteristics Chapter 25 ...
Page 443: ......
Page 458: ...Package Dimensions Chapter 26 26 ...
Page 459: ......
Page 461: ...26 2 MSM66591 ML66592User sManual Chapter 26 Package Dimensions ...
Page 462: ...Revision History Chapter 27 27 ...
Page 463: ......
Page 465: ...27 2 MSM66591 ML66592User sManual Chapter 27 Revision History ...