DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 364

• 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 9 Bus State Controller (BSC)
(3)
A burst read occurs in the following cases with this LSI.
• Access size in reading is larger than data bus width.
• 16-byte transfer in cache miss.
• 16-byte transfer by DMAC
• 16-byte to 128-byte transfer by LCDC
This LSI always accesses the SDRAM with burst length 1. For example, read access of burst
length 1 is performed consecutively 4 times to read 16-byte continuous data from the SDRAM that
is connected to a 32-bit data bus. This access is called the burst read with the burst number 4.
Table 9.17 shows the relationship between the access size and the number of bursts.
Note: For details, see section 24, LCD Controller (LCDC).
Table 9.17 Relationship between Access Size and Number of Bursts
Note:
Rev. 3.00 Sep. 28, 2009 Page 332 of 1650
REJ09B0313-0300
Bus Width
16 bits
32 bits
Burst Read
* 32-, 64-, or 128-byte access occurs when the LCDC is used. For details, see section
24, LCD Controller (LCDC).
Access Size
8 bits
16 bits
32 bits
16 bits
32 bytes*
64 bytes*
128 bytes*
8 bits
16 bits
32 bits
16 bits
32 bytes*
64 bytes*
128 bytes*
Number of Bursts
1
1
2
8
16
32
64
1
1
1
4
8
16
32