HD6417040AF28 RENESAS [Renesas Technology Corp], HD6417040AF28 Datasheet - Page 280

• Manufacturer Part Number: HD6417040AF28
• Description: Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)
• Manufacturer: RENESAS [Renesas Technology Corp]

data bus
D15–D0
Internal
A21–A0
address
address
Internal
indirect
DMAC
DMAC
Notes:
WRH,
buffer
buffer
WRL
CSn
data
bus
RD
CK
*1
*2
External memory space has 16-bit width.
The internal address bus is controlled by the port and does not change.
DMAC does not fetch value until 32-bit data is read from the internal data
bus.
address (H)
Transfer source
address (H)
(1st)
Address read cycle
Indirect
Transfer
address *
source
Indirect address *
1
address (L)
address (L)
Transfer
(2nd)
source
Indirect
NOP
2
cycle
NOP
NOP
Indirect
address
read cycle
Indirect
address
address
Data
Indirect
(3rd)
Transfer
data
Transfer
data
Transfer
write cycle
destination
data
Transfer
address
Data
(4th)
Transfer
Transfer
data
data