Page 185
TMP89FM42
RA002
14.4.4 8-bit programmable pulse generate (PPG) output mode
In the 8-bit PPG mode, the pulses with arbitrary duty and cycle are output by using the T00REG and
T00PWM registers.
By setting the T001CR<OUTAND> register, a pulse that is a logical ANDed product of the TC00 and TC01
outputs can be output to the TC01 pin. This function facilitates the generation of remote-controlled waveforms,
for example.
The operation of TC00 is described below, and the same applies to the operation of TC01.
14.4.4.1 Setting
TC00 is put into the 8-bit PPG mode by setting T00MOD<TCM0> to "10" and T001CR<TCAS> to
"0". Set T00MOD<EIN0> to "0" and select the clock at T00MOD<TCK0>. Set the duty pulse width at
T00PWM and the cycle width at T00REG.
Set T00MOD<DBE0> to "1" to use the double buffer.
Setting T001CR<T00RUN> to "1" starts the operation. After the timer is started, writing to T00MOD
becomes invalid. Be sure to complete the required mode settings before starting the timer.
Figure 14-8
PPG0
Pulse Output
Set the initial state of the
PPG0
pin at T00MOD<TFF0>. Setting T00MOD<TFF0> to "0" selects the
"L" level as the initial state of the
PPG0
pin. Setting T00MOD<TFF0> to "1" selects the "H" level as the
initial state of the
PPG0
pin. If the
PPG0
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
PPG0
pin. Table 14-8 shows the list of out-
put levels of the
PPG0
pin.
Setting the T001CR<OUTAND> bit to "1" allows the
PPG0
pin to output a pulse that is a logical
ANDed product of the TC00 and TC01 outputs.
Table 14-8 List of Output Levels of
PPG0
Pin
TFF0
PPG0
pin output level
Before the start
of operation
(initial state)
T00PWM
matched
T00REG
matched
Operation
stopped
(initial state)
0
L
H
L
L
1
H
L
H
H
T00PWM
Timer start
(Duty pulse)
(Duty pulse)
(1 cycle)
(1 cycle)
T00REG
PPG0 pin output
(TFF0=“0”)
PPG0 pin output
(TFF0=“1”)
Timer stop
T00PWM
T00REG
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: ......