HD6417720BP133BV Renesas Electronics America, HD6417720BP133BV Datasheet - Page 858

• Manufacturer Part Number: HD6417720BP133BV
• Description: SH3-DSP, WITH USB AND LCDC, PB-F
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417720BP133BV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: FIFO, I²C, IrDA, MMC, SCI, SD, SIO, SIM, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 117
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 24 USB Host Controller (USBH)
24.4
24.4.1
USB Host Controller expects that data is compiled from lower address to upper address regardless
endian setting of the CPU. Below figure shows data read operation, which is done by USB Host
Controller.
The correspondence between data in memory and data read by USB Host Controller must be
equal. When USB Host Controller reads data from external memory, USB Host Controller reads
data by long word read operation every time regardless of endian. USB Host Controller uses data
in byte from lower address in long word which it reads regardless the endian mode. Even endian
mode is set as big or little, set the data from down addresses.
Below program flow is the example of failure.
• In program, set transfer address A to register R0 at big endian
• In program, set transfer start address A to USB Host Controller, and set 1byte as transfer size.
This example shows above operation transfers expected data #H'12.
Data is filled from the lower bits of the memory in writing so that the data is read/written in bi-
direction consistently regardless of the endian type. That is, the data is always aligned with the
little endian specification.
Page 798 of 1414
In program, "MOV.B #H'12,@R0"
Data Storage Format which Required by USB Host Controller
Storage Format of the Transferred Data
DATA.L
DATA.L
DATA.L
Program
H'11223344
H'55667788
H'00000099
+3
12
Memory
+2
00
+1
00
+0
00
+11
+3
+7
11
55
00
Memory (Area 3)
+10
+2
22
+6
66
00
LW read H'12000000
Actually transferred data
+1
33
+5
77
+9
00
Data expected to be transferred
+0
44
+4
88
99
8
LW read H'11223344
LW read H'55667788
LW read H'00000099
SH7720 Group, SH7721 Group
USB host
R01UH0083EJ0400 Rev. 4.00
Sep 21, 2010