HD6417760BL200AV Renesas Electronics America, HD6417760BL200AV Datasheet - Page 866

• Manufacturer Part Number: HD6417760BL200AV
• Description: SH4 7760, 17 X17 256BGA, LCDC, U
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417760BL200AV

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: Audio Codec, CAN, EBI/EMI, FIFO, I²C, MFI, MMC, SCI, Serial Sound, SIM, SPI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 69
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

21.4
The USB host has on-chip 8-Kbyte SRAM as a shared memory which is defined in the OpenHCI
specification. Write access to the shared memory is possible in bytes, words, or longwords. The
data format is little endian. The MSB is bit 31 and the LSB is bit 0. The user can use the endian
conversion in bytes or in words by rewriting an appropriate value in the CVRT bit in DMAUCR.
Figure 21.2 shows a memory map of the shared memory.
When area P4 is selected as the register area, the CPU sees the shared memory area to be mapped
into H'FE34 1000 to H'FE34 2FFF, while the HC sees it to be mapped into H'0000 0000 to H'0000
1FFF. Therefore when the HC accesses the shared memory, the area from H'0000 0000 to H'0000
1FFF must be specified.
When USB HC (Host controller) reads the data at the following 4 Kbyte boundary address in the
USB shared memory, the wrong data may be returned to USB HC.
The wrong access address whish USB HC (Host controller) is using.
The shared memory area is mapped into H'FE34 1000 to H'FE34 2FFF in area P4 or into H'1E34
1000 to H'1E34 2FFF in area 7. For details, see section 32, List of Registers.
Rev. 2.00 Feb. 12, 2010 Page 782 of 1330
REJ09B0554-0200
Memory
H'0000 0FFC— H'0000 0FFF
H'0000 1FFC— H'0000 1FFF
CPU
Figure 21.2 Memory Map of Shared Memory
H'FE34 2FFF
H'FE34 1000
Shared memory
H'0000 1FFF
H'0000 0000
Host controller
USB host
(HC)