HD6417720BP133BV Renesas Electronics America, HD6417720BP133BV Datasheet - Page 758

• 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 21 Serial I/O with FIFO (SIOF)
Page 698 of 1414
Bit
1
0
Bit Name
RFUDF
RFOVF
Initial
Value
0
0
R/W
R/W
R/W
Description
Receive FIFO Underflow
0: No receive FIFO underflow
1: Receive FIFO underflow
A receive FIFO underflow means that reading of SIRDR
has occurred when the receive FIFO is empty.
When a receive FIFO underflow occurs, the value of data
read from SIRDR is not guaranteed.
•
•
•
Receive FIFO Overflow
0: No receive FIFO overflow
1: Receive FIFO overflow
A receive FIFO overflow means that writing has occurred
when the receive FIFO is full.
When a receive FIFO overflow occurs, the SIOF indicates
overflow, and receive data is lost.
•
•
•
This bit is valid when the RXE bit in SICTR is 1.
When 1 is written to this bit, the contents are cleared.
Writing 0 to this bit is invalid.
If the issue of interrupts by this bit is enabled, an
SIOF interrupt is issued.
This bit is valid when the RXE bit in SICTR is 1.
When 1 is written to this bit, the contents are cleared.
Writing 0 to this bit is invalid.
If the issue of interrupts by this bit is enabled, an
SIOF interrupt is issued.
SH7720 Group, SH7721 Group
R01UH0083EJ0400 Rev. 4.00
Sep 21, 2010