Page 63
TMP89FM42
RA000
4. External Interrupt control circuit
External interrupts detects the change of the input signal and generates an interrupt request. Noise can be removed
by the built-in digital noise canceller.
4.1
Configuration
The external interrupt control circuit consists of a noise canceller, an edge detection circuit, a level detection cir-
cuit and an interrupt signal generation circuit.
Externally input signals are input to the rising edge or falling edge or level detection circuit for each external inter-
rupt, after noise is removed by the noise canceller.
Figure 4-1 External Interrupts 0/5
Figure 4-2 External Interrupts 1/2/3
Figure 4-3 External Interrupt 4
Noise canceller
INTj pin
fs/4
fcgck
INTj interr
request
j=0,5
Falling edge
detection circuit
Interrupt request signal
generation circuit
Noise canceller
3 4
2
1
fcgck
fs/4
INTi pin
INTiLVL
INTiES
INTi interrupt
request
i=1 to 3
A B C D S
Z
Rising edge
detection circuit
Interrupt request
signal generation
circuit
Falling edge
detection circuit
EINTCRi
Noise canceller
3 4
2
1
fcgck
INT4 pin
INT4LVL
INT4ES
INT4 interrupt
request
A B C D S
Z
Rising edge
detection circuit
Interrupt request
signal generation
circuit
Level detection
circuit
Falling edge
detection circuit
EINTCR4
fs
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: ......