HD6475328-CP10 HITACHI [Hitachi Semiconductor], HD6475328-CP10 Datasheet - Page 137

• Manufacturer Part Number: HD6475328-CP10
• Description: original Hitachi CMOS microcomputer unit (MCU)
• Manufacturer: HITACHI [Hitachi Semiconductor]

DTC
Read destination address
Read source address
Read transfer mode
Destination address
Read DTC vector
increment mode?
increment mode?
Source address
DTCR
DTC interrupt?
Read DTCR
Write DTCR
DTCR = 0?
Read data
Write data
DTC END
N
N
INT
Figure 6-2 Flowchart of Data Transfer Cycle
DTCR
Y
N
Increment source address (+1 or +2)
Increment destination address
Write destination address
N
Write source address
Y
Y
Y
Interrupt
(+1 or +2)
119
Read address from
Save PC and SR
Start executing
interrupt-handling
routine at that
address.
Read vector
vector table
CPU