Fujitsu F2MC-16LX Hardware Manual page 71

Interrupt Control Register Functions
Each of the interrupt control register (ICR) has the following four functions.
• Setting of interrupt level for peripheral function
• Selection of whether to perform normal interrupt or external intelligent for corresponding peripheral
function (EI
• Select the channel of Extended Intelligent I/O service (EI
• Display of extended intelligent I/O service (EI
For the interrupt control registers (ICRs), some functions are different between write and read. Details are
shown in Figure 3.1-1 and Figure 3.1-2 in section "3.3.1 Interrupt Control Registers (ICR00 to ICR15)".
Note:
Do not use any read modify write instruction to access the interrupt control register (ICR). An attempt
of this may cause a malfunction.
2
OS)
2
OS)
2
OS) status
CHAPTER 3 INTERRUPT
55