MB90560/565 Series
(2) Structure of the DTP/external interrupt circuit
The DTP/external interrupt circuit consists of the following four blocks :
• DTP/interrupt detection circuit
• DTP/interrupt request register (EIRR)
• DTP/interrupt enable register (ENIR)
• Request level setting register (ELVR)
• Block diagram
Request level setting register (ELVR)
LB7 LA7 LB6 LA6 LB5 LA5 LB4 LA4 LB3 LA3 LB2 LA2 LB1 LA1 LB0 LA0
2
2
2
2
2
2
2
2
DTP/external interrupt input detection circuit
Selector
Pin
Pin
Selector
P63/INT7
P10/INT0
Selector
Pin
Pin
Selector
P16/INT6
P11/INT1
Selector
Selector
Pin
Pin
P15/INT5
P12/INT2
Pin
Selector
Selector
Pin
P14/INT4
P13/INT3
DTP/interrupt
request register
(EIRR)
ER7 ER6 ER5 ER4 ER3 ER2 ER1 ER0
Interrupt request signal
#25 (19H)*
#26 (1AH)*
#27 (1BH)*
#28 (1CH)*
DTP/interrupt
enable register
(ENIR)
EN7 EN6 EN5 EN4 EN3 EN2 EN1 EN0
* : Interrupt number
48
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