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CHAPTER 3 INTERRUPTS
Table 3.8-2 Data Transfer Compensation Values for EI
2
OS Execution Time
I/O address pointer
Internal access
B/E O
Buffer address pointer
Internal
access
B/E 0 +2
O+2+4
B: Byte data transfer
E: Even address word transfer
O: Odd address word transfer
Table 3.8-3 Interrupt Handling Time
Address pointed to by the stack pointer Compensation value [cycle]
External 8 bits +4
External even-numbered address +1
External odd-numbered address +4
Internal even-numbered address 0
Internal odd-numbered address +2