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4. External Interrupt control circuit
4.3 Function
TMP89FM42
RA000
4.3.4.2
A noise canceller pass signal monitoring function when interrupt request signals are
generated
The level of a signal that has passed through the noise canceller when an interrupt request is generated
can be read by using EINTCR4<INT4LVL>. When both edges are selected as detection edges, the edge
where an interrupt is generated can be detected by reading EINTCR4<INT4LVL>.
Figure 4-6 Interrupt Request Generation and EINTCR4<INT4LVL>
4.3.4.3
Noise cancel time selection function
In NORMAL1/2 or IDLE1/2 mode, a signal that has been sampled by fcgck is sampled at the sampling
interval selected at EINTCRx<INT4NC>. If the same level is detected three consecutive times, the signal
is recognized as a signal. If not, the signal is removed as noise.
Table 4-4 Selection of Interrupt Request Generation Edge
EINTCR4<INT4ES>
Detected at
00
Rising edge
01
Falling edge
10
Both edges
11
"H" level interrupt
INT4 pin
Interrupt request signal
(detected at the falling edge)
Interrupt request signal
(detected at the rising edge)
Interrupt request signal
(detected at both edges)
INT4LVL
INT4LVL
INT4LVL
INT4LVL
Interrupt request signal
(level detection)
Signal that has passed through
the noise canceller
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: ......