EM78P5840N/41N/42N
8-Bit Microcontrollers
won’t reset the ADST bit. In this condition, ADI is deactived. After ADI in IOCE Page 0
Bit 5 is set, ADI in RE Page 0 Bit 5 will beactivated again.
To minimize the operating current, all biasing circuits in the A/D module that consume
DC current, are powered down when the ADPWR bit in IOCB Page 1 Bit 2 register
is ”0.” When ADPWR bit is ”1,” the A/D converter module is operating.
1
2
3
4
5
6
7
8
9
10
Start
Sample
ADI (IOCE Page 0 Bit 5 ) =1
Cleared by software
ADI (RE Page 0 Bit 5)
Data
Figure 7-6 A/D Converter Timing
Bit 6 (undefined): This bit is not used. However, you must clear this bit to “0” to avoid
possible error.
Bit 7 (PWM2) :
PWM2 interrupt enable bit
"0" : Disable interrupt
"1" : Enable interrupt
7.3.11 IOCF (Interrupt Mask)
Page 0 (Interrupt Mask Register)
Bit 7
INT3
Bit 6
Bit 5
Bit 4
INT1
Bit 3
INT0
Bit 2
Bit 1
CNT1
R/W-0
Bit 0
TCIF
0
-
0
-
0
-
R/W-0
R/W-0
R/W-0
R/W-0
Bit 0 ~ Bit 1 (TCIF ~ CNT1): Interrupt enable bits
"0" : Disable interrupt
"1" : Enable interrupt
Bit 2 (undefined): This bit is not used. However, this bit must be cleared to “0” to avoid
unpredicted interrupts to occur.
Bits 3 ~ Bit 4 (INT0 ~ INT1): Interrupt enable bits
"0" : Disable interrupt
"1" : Enable interrupt
Bit 5 ~ Bit 6 (undefined): These bits are not used. However, these bits must be
cleared to “0” to avoid unpredicted interrupts to occur.
Bits 7 (INT3):
Interrupt enable bit
"0" : Disable interrupt
"1" : Enable interrupt
28 •
Product Specification (V1.0) 04.25.2006
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
