DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 474

• Manufacturer Part Number: DS72030W200FPV
• Description: MPU, 32BIT, SH7203, ROMLESS, 240QFP
• Manufacturer: Renesas Electronics America
• Series: SH7200r

Specifications of DS72030W200FPV

• Core Size: 32bit
• Program Memory Size: 32KB
• Cpu Speed: 200MHz
• Digital Ic Case Style: QFP
• No. Of Pins: 240
• Supply Voltage Range: 1.1V To 1.3V
• Operating Temperature Range: -20°C To +85°C
• Svhc: No SVHC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Section 10 Direct Memory Access Controller (DMAC)
Figure 10.17 shows the TEND output timing.
The unit of the DMA transfer is divided into multiple bus cycles when 16-byte transfer is
performed for an 8-bit, 16-bit, or 32-bit external device, when longword access is performed for
an 8-bit or 16-bit external device, or when word access is performed for an 8-bit external device.
When a setting is made so that the DMA transfer size is divided into multiple bus cycles and the
CS signal is negated between bus cycles, note that DACK and TEND are divided like the CS
signal for data alignment as shown in figure 10.18. Figures 10.13 to 10.17 show the cases where
DACK and TEND are not divided in the DMA transfer.
Rev. 3.00 Sep. 28, 2009 Page 442 of 1650
REJ09B0313-0300
CKIO
Bus cycle
DREQ
DACK
TEND
Figure 10.17 Example of DMA Transfer End Signal Timing
DMAC
(Cycle Steal Mode Level Detection)
CPU
End of DMA transfer
DMAC
CPU
CPU