DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 472

• 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)
10.4.5
(1)
When the DMAC is the bus master, the number of bus cycles is controlled by the bus state
controller (BSC) in the same way as when the CPU is the bus master. For details, see section 9,
Bus State Controller (BSC).
(2)
Figures 10.13 to 10.16 show the DREQ input sampling timings in each bus mode.
Rev. 3.00 Sep. 28, 2009 Page 440 of 1650
REJ09B0313-0300
Figure 10.14 Example of DREQ Input Detection in Cycle Steal Mode Level Detection
Figure 10.13 Example of DREQ Input Detection in Cycle Steal Mode Edge Detection
Number of Bus Cycles
DREQ Pin Sampling Timing
Number of Bus Cycles and DREQ Pin Sampling Timing
CKIO
Bus cycle
DREQ
(Overrun 0 at
high level)
DACK
(Active-high)
CKIO
Bus cycle
DREQ
(Overrun 1 at
high level)
DACK
(Active-high)
(Rising)
(Active-high)
CKIO
Bus cycle
DREQ
DACK
1st acceptance
1st acceptance
1st acceptance
Non sensitive period
CPU
CPU
CPU
Non sensitive period
Non sensitive period
CPU
CPU
CPU
2nd acceptance
DMAC
DMAC
Acceptance
start
DMAC
Acceptance start
2nd acceptance
2nd acceptance
Acceptance
start
CPU
CPU
CPU