em78p809n ELAN Microelectronics Corp, em78p809n Datasheet - Page 17

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

Product Specification (V1.0) 07.26.2005
(This specification is subject to change without further notice)
TC3CAP
Bit 7
Bit 7
ISFR2 − Interrupt Status Flag Register 2 ( Address: 0Fh )
Register Bank 1 ( R3 bits ( 7,6) = (0,1) )
TC3CR − Timer/Counter 3 Control Register ( Address: 05h )
Bit 6 ( TC3S ) : Timer/Counter 3 start control
Bit 6 (UERRIF) : UART Receiving Error Interrupt, cleared by software or UART
Bit 5 (RBFF) : UART Receive Mode Data Buffer Full Interrupt Flag. Flag cleared
Bit 4 (TBEF) : UART Transmit Mode Data Buffer Empty Interrupt Flag. Flag
Bit 3 (TBIF) : Time Base Timer Interrupt Flag. Flag cleared by software.
Bit 2 (EXIF1) : External Interrupt Flag (INT1). Flag cleared by software.
Bit 0 (TCIF0) : TCC Overflow Interrupt Flag. Set as TCC overflows; flag cleared
Bit 7 ( TC3CAP ) : Software capture control
0
IMR2
ISFR2 can be cleared by instruction, but cannot be set by instruction
IMR2 is the interrupt mask register
Note that reading ISFR2 will obtain the result of the ISFR2 "logic AND" and
TC3S = “0” : Stop and counter clear
TC3S = “1” : Start
TC3CAP = “0” : -
TC3CAP = “1” : Software capture
UERRIF
TC3S
Bit 6
Bit 6
"1" means interrupt request, "0" means non-interrupt
disabled.
by software.
cleared by software.
by software.
TC3CK1
RBFF
Bit 5
Bit 5
TC3CK0
TBEF
Bit 4
Bit 4
TC3M
Bit 3
TBIF
Bit 3
EXIF1
Bit 2
Bit 2
0
8-Bit Microcontroller
Bit 1
Bit 1
0
0
EM78P809N
TCIF0
Bit 0
Bit 0
0
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