Contec BX-100n-DC5000-C01, User Manual, Page: 51 / 145

4. Each Component Function
44
BX-100n User’s manual
I/O Addresses and Instructions
* 4000h: General-purpose I/O
D6 D5 D4 D3 D2 D1 D0 D7
PIO2 PIO1 PIO0
R/W
Figure 4.12. General-purpose Input Port (4000h)
R : Read data from PI0, PI1 and PI2.
W : Set data to be output to PO0, PO1 and PO2.
* 4001h (bit0-3): PI2/IRQ(14) event input control
WD_S0 WD_S1 PO2_M PIM2 PIM1 PIM0 RESET
D6 D5 D4 D3 D2 D1 D0 D7
Figure 4.13. Event Input Control Port (4001h)
Table 4.16. PIM2 - PIM0 : Interrupt output mode
RIM2 RIM1 RIM0 PI2/IRQ (14) interrupt input
0 0 1
Input the RAS connector's PI2/IRQ (14) signal to IRQ5.
0 1 0
Input the RAS connector's PI2/IRQ (14) signal to IRQ7.
0 1 1 Reserved * Do not set this value.
1 0 0
Input the RAS connector's PI2/IRQ (14) signal to IRQ10.
1 0 1
Input the RAS connector's PI2/IRQ (14) signal to IRQ11.
1 1 0 Input the RAS connector's PI2/IRQ (14) signal to NMI.
Others
Inhibit the RAS connector's PI2/IRQ (14) signal interrupt to be
set.
Table 4.17. RESET: Reset Input Modes
RESET PI2/IRQ (14)'s RESET input
0 Inhibit the remote reset input function of the RAS connector's PI2/IRQ (14) signal.
1 Use as the remote reset input function of the RAS connector's PI2/IRQ (14) signal.
CAUTION
A bit indicated with "rsv" is used by the system. Do not modify the bit.