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P80CL31 Datasheet(PDF) 36 Page - NXP Semiconductors

Part # P80CL31
Description  Low voltage 8-bit microcontrollers with UART
PDF  68 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

P80CL31 Datasheet(HTML) 36 Page - NXP Semiconductors

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1997 Apr 15
36
Philips Semiconductors
Product specification
Low voltage 8-bit microcontrollers with
UART
P80CL31; P80CL51
14.3.5
INTERRUPT POLARITY REGISTER (IX1)
Writing either a logic 1 or logic 0 to any Interrupt Polarity Register bit sets the polarity level of the corresponding external
interrupt to an active HIGH or active LOW respectively.
Table 19 Interrupt Polarity Register (SFR address E9H)
Table 20 Description of IX1 bits
14.3.6
INTERRUPT REQUEST FLAG REGISTER (IRQ1)
Table 21 Interrupt Request Flag Register (SFR address C0H)
Table 22 Description of IRQ1 bits
2
PX4
external interrupt 4 priority level
1
PX3
external interrupt 3 priority level
0
PX2
external interrupt 2 priority level
76543210
IL9
IL8
IL7
IL6
IL5
IL4
IL3
IL2
BIT
SYMBOL
DESCRIPTION
7
IL9
external interrupt 9 polarity level
6
IL8
external interrupt 8 polarity level
5
IL7
external interrupt 7 polarity level
4
IL6
external interrupt 6 polarity level
3
IL5
external interrupt 5 polarity level
2
IL4
external interrupt 4 polarity level
1
IL3
external interrupt 3 polarity level
0
IL2
external interrupt 2 polarity level
76543210
IQ9
IQ8
IQ7
IQ6
IQ5
IQ4
IQ3
IQ2
BIT
SYMBOL
DESCRIPTION
7
IQ9
external interrupt 9 request flag
6
IQ8
external interrupt 8 request flag
5
IQ7
external interrupt 7 request flag
4
IQ6
external interrupt 6 request flag
3
IQ5
external interrupt 5 request flag
2
IQ4
external interrupt 4 request flag
1
IQ3
external interrupt 3 request flag
0
IQ2
external interrupt 2 request flag
BIT
SYMBOL
DESCRIPTION



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