h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 126

• Manufacturer Part Number: h8s-2628
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 5 Interrupt Controller
5.7.4
Interrupt operation differs between the EEPMOV.B instruction and the EEPMOV.W instruction.
With the EEPMOV.B instruction, an interrupt request (including NMI) issued during the transfer
is not accepted until the transfer is completed.
With the EEPMOV.W instruction, if an interrupt request is issued during the transfer, interrupt
exception handling starts at a break in the transfer cycle. The PC value saved on the stack in this
case is the address of the next instruction.
Therefore, if an interrupt is generated during execution of an EEPMOV.W instruction, the
following coding should be used.
5.7.5
When operating by clock input, acceptance of input to an IRQ is synchronized with the clock. In
software standby mode, the input is accepted asynchronously. For details on the input conditions,
see section 23.3.2, Control Signal Timing.
Rev. 3.00 Oct 04, 2005 page 86 of 598
REJ09B0155-0300
L1:
Interrupts during Execution of EEPMOV Instruction
IRQ Interrupt
EEPMOV.W
MOV.W
BNE
R4,R4
L1