10. Interrupt Controller (INTC)
Rev.1.00 Jan. 10, 2008 Page 323 of 1658
REJ09B0261-0100
Bit Name
Initial
Value R/W Function Description
18 PORTH3E 0 R/W Enables interrupt request from pin 3
of port H.
17 PORTH2E 0 R/W Enables interrupt request from pin 2
of port H.
16 PORTH1E 0 R/W Enables interrupt request from pin 1
of port H.
15 to
11
⎯ All 0 R/W Reserved
These bits are always read as 0.
The write value should always be 0.
Enables a GPIO interrupt
request for each pin.
0: Disable the
corresponding interrupt
request
1: Enable the
corresponding interrupt
request
10 PORTE5E 0 R/W Enables interrupt request from pin 5
of port E.
9 PORTE4E 0 R/W Enables interrupt request from pin 4
of port E.
8 PORTE3E 0 R/W Enables interrupt request from pin 3
of port E.
7 to
3
⎯ All 0 R/W Reserved
These bits are always read as 0.
The write value should always be 0.
2 PORTE2E 0 R/W Enables interrupt request from pin 2
of port E.
1 PORTE1E 0 R/W Enables interrupt request from pin 1
of port E.
0 PORTE0E 0 R/W Enables interrupt request from pin 0
of port E.
When a GPIO port pin is used as an interrupt pin, the GPIO notifies the INTC of the interrupt when the GPIO detects an interrupt. The INTC indicates the interrupt as a 1-bit source in INT2A0 or INT2A1. In this case, the port and the pin number which interrupts are generated from can be identified by referring to INT2B6. Also, the ports can be specified by referring to the INTEVT code.