HD6417705F133BV Renesas Electronics America, HD6417705F133BV Datasheet - Page 497

• Manufacturer Part Number: HD6417705F133BV
• Description: MPU 3V 0K PB-FREE 208 FP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417705F133BV

• Core Processor: SH-3
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: EBI/EMI, FIFO, IrDA, SCI, USB
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 105
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

18.3.16 Data Status Register (DASTS)
DASTS indicates whether the transmit FIFO buffers contain valid data. A bit is set when data is
written to the corresponding FIFO buffer and the packet enable state is set, and cleared when all
data has been transmitted to the host.
Bit
7, 6
5
4
3 to 1
0
18.3.17 FIFO Clear Register (FCLR)
FCLR is a register to initialize the FIFO buffers for each endpoint. Writing 1 to a bit clears all the
data in the corresponding FIFO buffer. Note that the corresponding interrupt flag is not cleared.
Do not clear a FIFO buffer during transfer.
Bit
7
6
5
Bit Name
EP3DE
EP2DE
EP0iDE
Bit Name
EP3CLR
EP1CLR
Initial Value
0
0
0
0
0
Initial Value
Undefined
Undefined
Undefined
R/W
R
R
R
R
R
R/W
W
W
Description
Reserved
This bit is always read as 0.
EP3 Data Present
This bit is set when the endpoint 3 FIFO buffer
contains valid data.
EP2 Data Present
This bit is set when the endpoint 2 FIFO buffer
contains valid data.
Reserved
This bit is always read as 0.
EP0i Data Present
This bit is set when the endpoint 0 FIFO buffer
contains valid data.
Description
Reserved
The write value should always be 0.
EP3 Clear
Writing 1 to this bit initializes the endpoint 3 transmit
FIFO buffer.
EP1 Clear
Writing 1 to this bit initializes both sides of the
endpoint 1 receive FIFO buffer.
Rev. 2.00, 09/03, page 449 of 690