CP80S54E ETC2 [List of Unclassifed Manufacturers], CP80S54E Datasheet - Page 13

• Manufacturer Part Number: CP80S54E
• Description: EPROM/ROM-Based 8-Bit Microcontroller Series
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

/PHB7 : = 0, Enable the internal pull-high of IOB7 pin.
2.1.13 INTEN (Interrupt Mask Register)
T0IE : Timer0 overflow interrupt enable bit.
PBIE : Port B input change interrupt enable bit.
INTIE : External INT pin interrupt enable bit.
Bit6:BIT3 : Not used. Read as “0”s.
GIE : Global interrupt enable bit.
2.1.14 INTFLAG (Interrupt Status Register)
T0IF : Timer0 overflow interrupt flag. Set when Timer0 overflows, reset by software.
PBIF : Port B input change interrupt flag. Set when Port B input changes, reset by software.
INTIF : External INT pin interrupt flag. Set by rising/falling (selected by INTEDG bit (OPTION<6>)) edge on INT pin,
Bit7:BIT3 : Not used. Read as “0”s.
2.1.15 ACC (Accumulator)
Accumulator is an internal data transfer, or instruction operand holding. It can not be addressed.
0Eh (r/w)
0Fh (r/w)
N/A (r/w)
Address
Address
Address
= 0, Disable all interrupts. For wake-up from SLEEP mode through an interrupt event, the device will continue
= 1, Enable all un-masked interrupts. For wake-up from SLEEP mode through an interrupt event, the device
Note : When an interrupt event occur with the GIE bit and its corresponding interrupt enable bit are all set, the
= 0, Disable the Timer0 overflow interrupt.
= 1, Enable the Timer0 overflow interrupt.
= 0, Disable the Port B input change interrupt.
= 1, Enable the Port B input change interrupt .
reset by software.
= 0, Disable the External INT pin interrupt.
= 1, Enable the External INT pin interrupt.
= 1, Disable the internal pull-high of IOB7 pin.
execution at the instruction after the SLEEP instruction.
will branch to the interrupt address (008h).
GIE bit will be cleared by hardware to disable any further interrupts. The RETFIE instruction will exit the
interrupt routine and set the GIE bit to re-enable interrupt.
INTFLAG
INTEN
Name
Name
Name
ACC
GIE
B7
B7
B7
-
B6
B6
B6
-
-
B5
B5
B5
-
-
B4
B4
B4
Accumulator
-
-
B3
B3
B3
-
-
CP80S54/56
INTIE
INTIF
B2
B2
B2
PBIE
PBIF
Rev0.1 Nov 30, 2005
B1
B1
B1
P.13/CP80S54/S56
T0IE
T0IF
B0
B0
B0