SH7032 Datasheet, PDF (95/687 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 5 Interrupt Controller (INTC)
5.1.3 Pin Configuration
INTC pins are summarized in table 5.1.
Table 5.1 INTC Pin Configuration
Name
Abbr.
Nonmaskable interrupt input pin NMI
Interrupt request input pins
Interrupt request output pin
IRQ0–
IRQ7
IRQOUT
I/O Function
I Inputs a non-maskable interrupt request
signal.
I Inputs maskable interrupt request signals.
O Outputs a signal indicating an interrupt
source has occurred.
5.1.4 Registers
The interrupt controller has six registers as listed in table 5.2. These registers are used for setting
interrupt priority levels and controlling the detection of external interrupt input signals.
Table 5.2 Interrupt Controller Register Configuration
Name
Abbr. R/W Address*² Initial Value Bus width
Interrupt priority register A
IPRA R/W H'5FFFF84 H'0000
8, 16, 32
Interrupt priority register B
IPRB R/W H'5FFFF86 H'0000
8, 16, 32
Interrupt priority register C
IPRC R/W H'5FFFF88 H'0000
8, 16, 32
Interrupt priority register D
IPRD R/W H'5FFFF8A H'0000
8, 16, 32
Interrupt priority register E
Interrupt control register
IPRE R/W H'5FFFF8C H'0000
ICR R/W H'5FFFF8E *¹
8, 16, 32
8, 16, 32
Notes: 1. H'8000 when pin NMI is high, H'0000 when pin NMI is low.
2. Only the values of bits A27–A24 and A8–A0 are valid; bits A23–A9 are ignored. For
details on the register addresses, see section 8.3.5, Area Descriptions.
Rev. 7.00 Jan 31, 2006 page 69 of 658
REJ09B0272-0700