Operation Of Vei (Interrupt Request) - Mitsubishi Electric M32R Series User Manual

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14.3.5 Operation of VEI (Interrupt Request)

When the VEI (interrupt request) command is issued, the RTD outputs data from the address that
has been accessed by the instruction (either read or write) immediately before receiving the VEI
command.
RTDRXD
Note : X = Don't Care (However, if issued immediately after the RCV command, bits 20-31 must all be set
to 1.)
Figure 14.3.8 VEI (Interrupt Request) Command Data Format
RTDCLK
RTDRXD
RTDTXD
RTDACK
RTD interrupt
Note 1 : WRR command can also be used.
Note 2 : (An) = Specified address
D (An) = Data at specified address (An)
Figure 14.3.9 Operation of the VEI (Interrupt Request) Command
(LSB side)
31 20
• • • • • •
• • • • • •
X X
(Note)
VEI (interrupt request
generation) command
32 clock
periods
RDR (A1)
(Note 1)
• • • • • •
2 clock
periods
REAL-TIME DEBUGGER (RTD)
14.3 Functional Description of the RTD
19 18 17 16 15
0 1 1 0 X
32 clock 32 clock
periods periods
VEI
D (A1) Read value
RTD interrupt request
14-10
(MSB side)
• • • • • • • • • •
• • • • • • • • • •
(Note)
32 clock
periods
• • • • • •
D (A1) Read value
(Note 2)
(Note 2)
0
X
Ver.0.10