HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 112

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

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

4.3.6
Table 4.4 indicates the number of states that elapse from an interrupt request signal until the first
instruction of the software interrupt-handling routine is executed. Since on-chip memory is
accessed 16 bits at a time, very fast interrupt service can be obtained by placing interrupt-handling
routines in on-chip ROM and the stack in on-chip RAM.
Table 4.4
No.
1
2
3
4
5
6
Notes: *1 These values do not apply if the current instruction is EEPMOV.
80
*2 If wait states are inserted in external memory access, add the number of wait states.
*3 1 for internal interrupts.
Interrupt Response Time
Reason for Wait
Interrupt priority decision
Wait for completion of current
instruction
Save PC and CCR
Fetch vector
Fetch instruction
Internal processing
Total
Number of States before Interrupt Service
*1
On-Chip Memory
2
1 to 13
4
2
4
4
17 to 29
*3
Number of States
External Memory
2
5 to 17
12
6
12
4
41 to 53
*3
*2
*2
*2
*2
*2