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P80CL31 Datasheet(PDF) 35 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) 35 Page - NXP Semiconductors

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1997 Apr 15
35
Philips Semiconductors
Product specification
Low voltage 8-bit microcontrollers with
UART
P80CL31; P80CL51
14.3.3
INTERRUPT PRIORITY REGISTER (IP0)
Bit values: 0 = low priority; 1 = high priority.
Table 15 Interrupt Priority Register (SFR address B8H)
Table 16 Description of IP0 bits
14.3.4
INTERRUPT PRIORITY REGISTER (IP1)
Bit values: 0 = low priority; 1 = high priority.
Table 17 Interrupt Priority Register (SFR address F8H)
Table 18 Description of IP1 bits
76543210
−−−
PS0
PT1
PX1
PT0
PX0
BIT
SYMBOL
DESCRIPTION
7
−
reserved
6
−
reserved
5
−
reserved
4
PS0
UART SIO interrupt priority level
3
PT1
Timer 1 interrupt priority level
2
PX1
external interrupt 1 priority level
1
PT0
Timer 0 interrupt priority level
0
PX0
external interrupt 0 priority level
76543210
PX9
PX8
PX7
PX6
PX5
PX4
PX3
PX2
BIT
SYMBOL
DESCRIPTION
7
PX9
external interrupt 9 priority level
6
PX8
external interrupt 8 priority level
5
PX7
external interrupt 7 priority level
4
PX6
external interrupt 6 priority level
3
PX5
external interrupt 5 priority level



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