NRF9E5 Datasheet, PDF (46/104 Pages) List of Unclassifed Manufacturers – 433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC

PRODUCT SPECIFICATION
nRF9 E5 Single Chip Transceiver with Embedded Microcontroller and ADC
Table 37 explains the bit functions of the IE register.
Bit
Function
IE.7
EA - Global interrupt enable. Controls masking of all interrupts. EA = 0 disables all
interrupts (EA overrides individual interrupt enable bits). When EA = 1, each interrupt
is enabled or masked by its individual enable bit.
IE.6
Reserved. Read as 0.
IE.5
ET2 - Enable Timer 2 interrupt. ET2 = 0 disables Timer 2 interrupt (TF2). ET2 = 1
enables interrupts generated by the TF2 or EXF2 flag.
IE.4
ES - Enable Serial Port interrupt. ES = 0 disables Serial Port interrupts (TI and RI). ES
= 1 enables interrupts generated by the TI or RI flag.
IE.3
ET1 - Enable Timer 1 interrupt. ET1 = 0 disables Timer 1 interrupt (TF1). ET1 = 1
enables interrupts generated by the TF1 flag.
IE.2
EX1 - Enable external interrupt 1. EX1 = 0 disables external interrupt 1 (INT1_N). EX1
= 1 enables interrupts generated by the INT1_N pin.
IE.1
ET0 - Enable Timer 0 interrupt. ET0 = 0 disables Timer 0 interrupt (TF0). ET0 = 1
enables interrupts generated by the TF0 flag.
IE.0
EX0 - Enable external interrupt 0. EX0 = 0 disables external interrupt 0 (INT0_N). EX0
= 1 enables interrupts generated by the INT0_N pin.
Table 37 IE Register – SFR 0xA8.
Table 38 explains the bit functions of the IP register.
Bit
Function
IP.7
Reserved. Read as 1.
IP.6
Reserved. Read as 0.
IP.5
PT2 - Timer 2 interrupt priority control. PT2 = 0 sets Timer 2 interrupt (TF2) to low
priority. PT2 = 1 sets Timer 2 interrupt to high priority.
IP.4
PS - Serial Port interrupt priority control. PS = 0 sets Serial Port interrupt (TI or RI) to
low priority. PS = 1 sets Serial Port interrupt to high priority.
IP.3
PT1 - Timer 1 interrupt priority control. PT1 = 0 sets Timer 1 interrupt (TF1) to low
priority. PT1 = 1 sets Timer 1 interrupt to high priority.
IP.2
PX1 - External interrupt 1 priority control. PX1 = 0 sets external interrupt 1 (INT1_N)
to low priority. PT1 = 1 sets external interrupt 1 to high priority.
IP.1
PT0 - Timer 0 interrupt priority control. PT0 = 0 sets Timer 0 interrupt (TF0) to low
priority. PT0 = 1 sets Timer 0 interrupt to high priority.
IP.0
PX0 - External interrupt 0 priority control. PX0 = 0 sets external interrupt 0 (INT0_N)
to low priority. PT0 = 1 sets external interrupt 0 to high priority.
Table 38 IP Register – SFR 0xB8.
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone [phone] - Fax [phone]
Revision: 1.1
Page 46 of 104
June 2004