HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 528

• Manufacturer Part Number: HD6417712BPV
• Description: MPU 1.5/3.3V 0K PB-FREE 256-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Ethernetr

Specifications of HD6417712BPV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, Ethernet, FIFO, SCI, SIO
• Peripherals: DMA, POR, WDT
• Number Of I /o: 24
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 13 Direct Memory Access Controller (DMAC)
2. Single Address Mode
Rev. 1.00 Dec. 27, 2005 Page 484 of 932
REJ09B0269-0100
Figure 13.6 Example of DMA Transfer Timing in Dual Address Mode (Source: Ordinary
In single address mode, either the transfer source or transfer destination external device is
accessed (selected) by means of the DACK signal, and the other device is accessed by address.
In this mode, the DMAC performs one DMA transfer in one bus cycle, accessing one of the
external devices by outputting the DACK transfer request acknowledge signal to it, and at the
same time outputting an address to the other device involved in the transfer. For example, in
the case of transfer between external memory and an external device with DACK shown in
figure 13.7, when the external device outputs data to the data bus, that data is written to the
external memory in the same bus cycle.
(Active-Low)
D31 to D0
A25 to A0
DACKn
CKIO
WEn
CSn
Note: In transfer between external memories, with DACK output in the read cycle,
RD
DACK output timing is the same as that of CSn.
memory, Destination: Ordinary memory)
Data read cycle
Transfer source
(1st cycle)
address
Data write cycle
Transfer destination
(2nd cycle)
address