Change Of Peripheral Function Pins; Irq Sense Port Select Register 16 (Issr16), Irq Sense Port Select; Register (Issr) - Renesas H8S/2158 User Manual

Section 9 I/O Ports
9.11

Change of Peripheral Function Pins

I/O ports that also function as peripheral modules, such as the external interrupts, 8-bit timers, and
MCIF, can be changed.
I/O ports that also function as the external interrupt pins are changed according to the setting of
ISSR16 and ISSR. I/O ports that also function as the 8-bit timer input pins and MCIF I/O pins are
changed according to the setting of PTCNT0. The pin name of the peripheral function is indicated
by adding 'Ex' at the head of the original pin name. In each peripheral function description, the
original pin name is used.
9.11.1 IRQ Sense Port Select Register 16 (ISSR16), IRQ Sense Port Select Register (ISSR)
ISSR16 and ISSR select ports that also function as IRQ15 to IRQ0 input pins.
ISSR16
Bit Bit Name
15 ISS15
14 ISS14
13 ISS13
12 ISS12
11 ISS11
10 ISS10
9 ISS9
8 ISS8
Rev. 3.00 Jan 25, 2006 page 258 of 872
REJ09B0286-0300
Initial Value R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
Description
0: P57/IRQ15 is selected
1: P87/ExIRQ15 is selected
0: P56/IRQ14 is selected
1: P86/ExIRQ14 is selected
0: P55/IRQ13 is selected
1: P85/ExIRQ13 is selected
0: P54/IRQ12 is selected
1: P84/ExIRQ12 is selected
0: P53/IRQ11 is selected
1: P83/ExIRQ11 is selected
0: P52/IRQ10 is selected
1: P82/ExIRQ10 is selected
0: P51/IRQ9 is selected
1: P81/ExIRQ9 is selected
0: P50/IRQ8 is selected
1: P80/ExIRQ8 is selected