EM78P312N
8-Bit Microcontroller
Product Specification
(V1.0) 10.03.2006
•
21
(This specification is subject to change without further notice)
External Interrupt
INT Pin
Secondary
Function Pin
Enable Condition
Edge
Digital Noise
Reject
/INT0
P60
ENI + INT0EN (IOCB)
Falling
-
INT1
P61
ENI + EXIE1 (IMR2)
Rising or Falling
15/Fc, 63/Fc
INT3
P80, TC3
ENI + EXIE3 (IMR2)
Rising or Falling or
Rising/Falling
7/Fc
/INT5
P73, /SLEEP
ENI + EXIE5 (IMR2)
-
-
ADOSCR
−
AD Offset Control Register ( Address : 0Ch )
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CALI SIGN VOF[2] VOF[1] VOF[0]
0
0
0
Bit 7 (CALI)
: Calibration enable bit for A/D offset
CALI = “0” :
disable Calibration
CALI = “1” :
enable Calibration
Bit 6 ( SIGN ) :
Offset voltage Polarity bit
SIGN = “0” :
Negative voltage
SIGN = “1” :
Positive voltage
Bit 5 ~ Bit 3 ( VOF[2] ~ VOF[0] ) :
Offset voltage bits
IMR1
−
Interrupt Mask Register 1 ( Address : 0Eh )
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
EXIE5 TCIE2 ADIE
0 EXIE3 TCIE4 SPIE TCIE3
Bit 7 ( EXIE5 ) :
External/INT5 pin Interrupt enable bit.
EXIE5 = “0” :
disable EXIF5 interrupt
EXIE5 = “1” :
enable EXIF5 interrupt
Bit 6 ( TCIE2 ) :
Timer/Counter 2 Interrupt enable bit.
TCIE2 = “0” :
disable TCIF2 interrupt
TCIE2 = “1” :
enable TCIF2 interrupt
Bit 5 ( ADIE ) :
ADC complete interrupt enable bit.
ADIE = “0” :
disable ADIF interrupt
ADIE = “1” :
enable ADIF interrupt
Bit 3 ( EXIE3 ) :
External INT3 pin Interrupt enable bit.
EXIE3
=
“0”
:
disable EXIF3 interrupt
EXIE3
=
“1”
:
enable EXIF3 interrupt
Bit 2 ( TCIE4 )
:
Timer/Counter 4 Interrupt enable bit.
TCIE4
=
“0”
:
disable TCIF4 interrupt
TCIE4 = “1” :
enable TCIF4 interrupt
