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TMP89FM42
RA001
The captured value must be read from TA0DRB (and also from TA0DRA for the double-edge capture)
before the next trigger edge is detected. If the captured value is not read, it becomes undefined. TA0DRA
and TA0DRB must be read by using a 16-bit access instruction.
Setting TA0CR<TA0S> to "0" during the timer operation causes the up counter to stop counting and be
cleared to "0000H".
Note 1: After the timer is started, if the edge opposite to the selected trigger edge is detected first, no capture
is executed and no INTTA0 interrupt request occurs. In this case, the capture starts when the selected
trigger edge is detected next.
Figure 13-7 Pulse Width Measurement Mode Timing Chart
Source clock
Counter
Counter clear
Counter clear
Counter clear Counter clear
Timer start
Count start
Count start
After the timer is started, if the falling edge
is detected first, no interrupt occurs.
1
0
TA0DRBH, L
INTTCA interrupt request
0
2
4
3
3
mn-1
mn
1
0
mn
2
0
TA0CR<TA0S>
Timer stop
TA0MOD<TA0TED>
TA0 pin input
Single-edge capture (TA0MOD<TAMCAP>=”0”)
Source clock
Counter
Timer start
After the timer is started, if the falling edge
is detected first, no interrupt occurs.
1
0
TA0DRBH, L
INTTCA interrupt request
0
2
4
3
mn-1 mn mn+1
st-1
st
mn
0
0
1
2
0
TA0DRAH, L
st
TA0CR<TA0S>
Timer stop
TA0MOD<TA0TED>
TA0 pin input
Double-edge capture (TA0MOD<TAMCAP>=”1”)
Содержание TLCS-870/C1 Series
Страница 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 ...
Страница 3: ...Revision History Date Revision 2007 10 25 1 First Release 2007 11 3 2 Contents Revised ...
Страница 4: ......
Страница 14: ......
Страница 18: ...1 3 Block Diagram TMP89FM42 1 3 Block Diagram Figure 1 2 Block Diagram ...
Страница 22: ...1 4 Pin Names and Functions TMP89FM42 ...
Страница 60: ...2 CPU Core 2 5 Revision History TMP89FM42 ...
Страница 76: ...3 Interrupt Control Circuit 3 8 Revision History TMP89FM42 ...
Страница 86: ...4 External Interrupt control circuit 4 3 Function TMP89FM42 ...
Страница 102: ...7 Voltage Detection Circuit 7 5 Revision History TMP89FM42 ...
Страница 126: ...8 I O Ports 8 3 I O Port Registers TMP89FM42 Note 2 i 0 to 1 ...
Страница 136: ...8 I O Ports 8 5 Revision History TMP89FM42 ...
Страница 142: ...9 Special Function Registers 9 3 SFR3 0x0E40 to 0x0EFF TMP89FM42 ...
Страница 146: ...10 Low Power Consumption Function for Peripherals TMP89FM42 ...
Страница 149: ...TMP89FM42 11 3 Revision History Rev Description RA001 Deleted SLEEP2 description ...
Страница 150: ...11 Divider Output DVO 11 3 Revision History TMP89FM42 ...
Страница 220: ...15 Real Time Clock RTC 15 4 Real Time Clock Operation TMP89FM42 ...
Страница 250: ...16 Asynchronous Serial Interface UART 16 15 Revision History TMP89FM42 ...
Страница 302: ...18 Serial Bus Interface SBI 18 7 Revision History TMP89FM42 ...
Страница 336: ...21 Flash Memory 21 4 Toggle Bit D6 TMP89FM42 Note 1 Make sure that you set the C register to 0x00 LD FLSCR2 0xD5 ...
Страница 338: ...21 Flash Memory 21 4 Toggle Bit D6 TMP89FM42 ...
Страница 384: ...22 Serial PROM Mode 22 15 Revision History TMP89FM42 ...
Страница 388: ...24 Input Output Circuit 24 1 Control Pins TMP89FM42 ...
Страница 404: ...25 Electrical Characteristics 25 11 Revision History TMP89FM42 ...
Страница 406: ...26 Package Dimensions TMP89FM42 ...
Страница 408: ......