Page 181
TMP89FM42
RA002
Figure 14-5
PWM0
Pulse Output
Set the initial state of the
PWM0
pin at T00MOD<TFF0>. Setting T00MOD<TFF0> to "0" selects the
"L" level as the initial state of the
PWM0
pin. Setting T00MOD<TFF0> to "1" selects the "H" level as the
initial state of the
PWM0
pin. If the
PWM0
pin is set as the function output pin in the port setting while the
timer is stopped, the value of T00MOD<TFF0> is output to the
PWM0
pin. Table 14-6 shows the list of
output levels of the
PWM0
pin.
And by setting "1" to T001CR<OUTAND> bit, a logical product (AND) pulse of TC00 and TC01’s out-
put can be output to
PWM0
pin. By using this function, the remote-control waveform can be created eaily.
14.4.3.2 Operations
Setting T001CR<T00RUN> to "1" allows the up counter to increment based on the selected source
clock. When a match between the lower 7 bits of the up counter value and the value set to
T00PWM<PWMDUTY> is detected, the output of the
PWM0
pin is reversed. When T00MOD<TFF0> is
"0", the
PWM0
pin changes from the "L" to "H" level. When T00MOD<TFF0> is "1", the
PWM0
pin
changes from the "H" to "L" level.
If T00PWM<PWMAD> is "1", an additional pulse that corresponds to 1 count of the source clock is
added at the 2
×
n-th match detection (n=1, 2, 3...). In other words, the
PWM0
pin output is reversed at the
timing of T00PWM<PWMDUTY>+1. When T00MOD<TFF0> is "0", the period of the "L" level
becomes longer than the value set to T00<PWMDUTY> by 1 source clock. When T00MOD<TFF0> is
"1", the period of the "H" level becomes longer than the value set to T00PWM<PWMDUTY> by 1 source
clock. This function allows two cycles of output pulses to be handled with a resolution nearly equivalent
to 8 bits.
No additional pulse is inserted when T00PWM<PWMAD> is "0".
Table 14-6 List of Output Levels of
PWM0
Pin
TFF0
PWM0
pin output level
Before the start
of operation
(initial state)
T00PWM
<PWMDUTY>
matched
(after the addi-
tional pulse)
Overflow
Operation
stopped
(initial state)
0
L
H
L
L
1
H
L
H
H
T00PWM
Timer start
Additional
pulse
(Duty pulse
width)
128 counts
(cycle width)
128 counts
(cycle width)
Cycle 1
Cycle 2
Cycle 3
Cycle 4
Cycle 5
Cycle 6
PWM0 pin output
(TFF0=“1”)
T00PWM
(Duty pulse
width)
Additional
pulse
Additional
pulse
PWM0 pin output
(TFF0=“0”)
INTT00 interrupt
request
Summary of Contents for TLCS-870/C1 Series
Page 1: ...8 Bit Microcontroller TLCS 870 C1 Series TMP89FM42 查询TMP89FM42供应商 捷多邦 专业PCB打样工厂 24小时加急出货 ...
Page 3: ...Revision History Date Revision 2007 10 25 1 First Release 2007 11 3 2 Contents Revised ...
Page 4: ......
Page 14: ......
Page 18: ...1 3 Block Diagram TMP89FM42 1 3 Block Diagram Figure 1 2 Block Diagram ...
Page 22: ...1 4 Pin Names and Functions TMP89FM42 ...
Page 60: ...2 CPU Core 2 5 Revision History TMP89FM42 ...
Page 76: ...3 Interrupt Control Circuit 3 8 Revision History TMP89FM42 ...
Page 86: ...4 External Interrupt control circuit 4 3 Function TMP89FM42 ...
Page 102: ...7 Voltage Detection Circuit 7 5 Revision History TMP89FM42 ...
Page 126: ...8 I O Ports 8 3 I O Port Registers TMP89FM42 Note 2 i 0 to 1 ...
Page 136: ...8 I O Ports 8 5 Revision History TMP89FM42 ...
Page 142: ...9 Special Function Registers 9 3 SFR3 0x0E40 to 0x0EFF TMP89FM42 ...
Page 146: ...10 Low Power Consumption Function for Peripherals TMP89FM42 ...
Page 149: ...TMP89FM42 11 3 Revision History Rev Description RA001 Deleted SLEEP2 description ...
Page 150: ...11 Divider Output DVO 11 3 Revision History TMP89FM42 ...
Page 220: ...15 Real Time Clock RTC 15 4 Real Time Clock Operation TMP89FM42 ...
Page 250: ...16 Asynchronous Serial Interface UART 16 15 Revision History TMP89FM42 ...
Page 302: ...18 Serial Bus Interface SBI 18 7 Revision History TMP89FM42 ...
Page 338: ...21 Flash Memory 21 4 Toggle Bit D6 TMP89FM42 ...
Page 384: ...22 Serial PROM Mode 22 15 Revision History TMP89FM42 ...
Page 388: ...24 Input Output Circuit 24 1 Control Pins TMP89FM42 ...
Page 404: ...25 Electrical Characteristics 25 11 Revision History TMP89FM42 ...
Page 406: ...26 Package Dimensions TMP89FM42 ...
Page 408: ......