M-V850E-IA4 Renesas Electronics America, M-V850E-IA4 Datasheet - Page 686

• Manufacturer Part Number: M-V850E-IA4
• Description: KIT EVAL V850E IA4 UPD70F3186
• Manufacturer: Renesas Electronics America

Specifications of M-V850E-IA4

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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17.3.4 Interrupt control registers (xxICn)
for each maskable interrupt request.
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An xxICn register is assigned to each interrupt request signal (maskable interrupt) and sets the control conditions
These registers can be read or written in 8-bit or 1-bit units.
Reset sets these registers to 47H.
Cautions 1. Disable interrupts (DI) to read the xxICn.xxIFn bit. If the xxIFn bit is read while interrupts are
2. When manipulating the xxICn.xxMKn bit while interrupt requests may occur (including the
enabled (EI), the correct value may not be read when acknowledging an interrupt and reading
the bit conflict.
state in which interrupts are disabled (DI)), be sure to use a bit manipulation instruction or
use the IMRm.xxMKn bit (m = 0 to 3).
CHAPTER 17 INTERRUPT/EXCEPTION PROCESSING FUNCTION
User’s Manual U16543EJ4V0UD