EM78P809N
8-Bit Microcontroller
External Interrupt
Secondary
Digital Noise
Reject
INT Pin
Enable Condition
Edge
Function Pin
P60
/INT0
INT1
ENI + INT0EN (IOCB)
ENI + EXIE1 (IMR2)
Falling
-
P61
Rising or Falling
15/Fc, 63/Fc
Rising or Falling or
Rising/Falling
INT3
P80, TC3
ENI + EXIE3 (IMR2)
ENI + EXIE5 (IMR2)
7/Fc
-
/INT5
P73, /SLEEP
•
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” : Calibration disable
CALI = “1” : Calibration enable
Bit 6 ( SIGN ) : Polarity bit of offset voltage
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
Product Specification (V1.0) 07.26.2005
• 25
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
