em78p809n ELAN Microelectronics Corp, em78p809n Datasheet - Page 30

• Manufacturer Part Number: em78p809n
• Description: 8-bit Microcontroller
• Manufacturer: ELAN Microelectronics Corp

EM78P809N
8-Bit Microcontroller
26 •
Bit 7
IMR2 − Interrupt Mask Register 2( Address: 0Fh )
Bit 3 ( EXIE3 ) : External INT3 pin Interrupt enable bit.
Bit 2 ( TCIE4 ) : Timer/Counter 4 Interrupt enable bit.
Bit 1 ( SPIE ) : SPI Interrupt enable bit.
Bit 0 ( TCIE3 ) : Timer/Counter 3 Interrupt enable bit.
Bit 6 ( UERRIE ) : UART receive error interrupt enable bit.
Bit 5 ( URIE ) : UART receive mode interrupt enable bit.
Bit 4 ( UTIE ) : UART transmit mode interrupt enable bit.
0
to "1".
instruction.
Individual interrupt is enabled by setting its associated control bit in the IMR1
Global interrupt is enabled by the ENI instruction and is disabled by the DISI
IMR1 register is both readable and writable.
EXIE3 = “0” : disable EXIF3 interrupt
EXIE3 = “1” : enable EXIF3 interrupt
TCIE4 = “0” : disable TCIF4 interrupt
TCIE4 = “1” : enable TCIF4 interrupt
SPIE = “0” : disable SPIF interrupt
SPIE = “1” : enable SPIF interrupt
TCIE3 = “0” : disable TCIF3 interrupt
TCIE3 = “1” : enable TCIF3 interrupt
URIE = “0” : disable RBFF interrupt
URIE = “1” : enable RBFF interrupt
UERRIE = “0” : disable UERRIF interrupt
UERRIE = “1” : enable UERRIF interrupt
UTIE = “0” : disable TBEF interrupt
UTIE = “1” : enable TBEF interrupt
UERRIE
Bit 6
URIE
Bit 5
UTIE
Bit 4
(This specification is subject to change without further notice)
Bit 3
TBIE
Product Specification (V1.0) 07.26.2005
EXIE1
Bit 2
Bit 1
0
TCIE0
Bit 0