em78p210n ELAN Microelectronics Corp, em78p210n Datasheet - Page 17

• Manufacturer Part Number: em78p210n
• Description: 8-bit Microcontroller With Otp Rom
• Manufacturer: ELAN Microelectronics Corp

Product Specification (V1.2) 04.22.2008
(This specification is subject to change without further notice)
6.2.13 Bank 0-RE (WUCR: Wake-up Control Register)
Bit 7 (EX1IF): External interrupt flag. Set by INT1 pin, reset by software.
Bits 6~5, 3, 1: not used, fixed to 0 all the time
Bit 4 (ICWE): Port 6 input change to wake-up status enable bit
Bit 2 (CMPWE): Comparator wake-up enable bit
Bit 0 (CMPIF): Comparator interrupt flag. Set when a change occurs in the output of
6.2.14 Bank 0-RF (Interrupt Status Register)
Bits 7~3: not used, fixed to 0 all the time
Bit 2 (EX0IF): External interrupt flag. Set by INT0 pin. Reset by software.
EX1IF
Bit 7
Bit 7
0
■ Bank 0-RE <7, 0> can be cleared by instruction but cannot be set.
■ Bank 1-RE <0> is an interrupt mask register.
■ Interrupt results from "logic AND" of Bank 0-RE <7, 0> and Bank 1-RE <0>, with
instruction “ENI”.
Bit 6
Bit 6
0 = no interrupt occurs
1 = with interrupt request
0 = Disable Port 6 input change to wake-up status
1 = Enable Port 6 input change wake-up status
0 = Disable Comparator wake-up
1 = Enable Comparator wake-up
When the Port 6 Input Status Change is used to enter interrupt vector or
to wake-up EM78P210N from sleep, the ICWE bit must be set to
“Enable“.
When the Comparator output status change is used to enter interrupt
vector or to wake-up from sleep, the CMPWE bit must be set to
“Enable“.
Comparator. Reset by software.
0 = no interrupt occurs
1 = with interrupt request
0 = no interrupt occurs
1 = with interrupt request
0
0
Bit 5
Bit 5
0
0
ICWE
Bit 4
Bit 4
0
NOTE
Bit 3
Bit 3
8-Bit Microcontroller with OTP ROM
0
0
CMPWE
EX0IF
Bit 2
Bit 2
Bit 1
Bit 1
ICIF
0
EM78P210N
CMPIF
Bit 0
Bit 0
TCIF
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