EDOSK2674 Datasheet, PDF (30/41 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Refresh Timer Counter:
RTCNT (H’FFFED6 ) = H’FF
Bit No
7
6
Bit Name RTCNT7 RTCNT6
Initial Value 1
1
5
RTCNT5
1
4
RTCNT4
1
3
RTCNT3
1
2
RTCNT2
1
1
RTCNT1
1
0
RTCNT0
1
Refresh Time Constant Register:
RTCOR (H’FFFED7) = H’FF
Bit No
7
6
Bit Name RTCOR7 RTCOR6
Initial Value 1
1
Compare refresh count with 0xFF
5
RTCOR5
1
4
RTCOR4
1
3
RTCOR3
1
2
RTCOR2
1
1
RTCOR1
1
0
RTCOR0
1
7.2.2. INTERRUPT CONTROLLER
The EDOSK2674 only uses the following interrupts:
• IRQ5n – Main Flash
• IRQ0n – LAN Controller
• IRQ1n-IRQ5n – Expansion connector
• NMI – Switch
Interrupt Control Register:
INTCR (H’FFFF31) = H’08
Bit No
7
6
5
4
Bit Name Reserved Reserved INTM1 INTM0
Initial Value 0
0
0
0
NMI is rising edge triggered. Interrupt Control mode 0
3
NMIEG
1
2
Reserved
0
1
Reserved
0
0
Reserved
0
IRQ Pin Select Register:
ITSR (H’FFFE16) = H’FF3F
Bit No
15
14
13
12
11
10
9
8
Bit Name ITS15
ITS14
ITS13
ITS12
ITS11
ITS10
ITS9
ITS8
Initial Value 1
1
1
1
1
1
1
1
Bit No
7
6
5
4
3
2
1
0
Bit Name ITS7
ITS6
ITS5
ITS4
ITS3
ITS2
ITS1
ITS0
Initial Value 0
0
1
1
1
1
1
1
IRQ15-IRQ8 – Port 2
IRQ7,6 – Port 57, 56
IRQ5-IRQ0 – Port 8
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