HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 592

• Manufacturer Part Number: HD6417712BPV
• Description: MPU 1.5/3.3V 0K PB-FREE 256-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Ethernetr

Specifications of HD6417712BPV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, Ethernet, FIFO, SCI, SIO
• Peripherals: DMA, POR, WDT
• Number Of I /o: 24
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 16 Serial Communication Interface with FIFO (SCIF)
Rev. 1.00 Dec. 27, 2005 Page 548 of 932
REJ09B0269-0100
Bit
5
Bit Name
TDFE
Initial
Value
1
R/W
R/(W)*
Description
Transmit FIFO Data Empty
Indicates that data has been transferred from
SCFTDR to SCTSR, the number of data bytes in
SCFTDR has been equal to or below the transmit
trigger data number set by bits TTRG1 and TTRG0
in SCFCR, and new transmit data can be written to
SCFTDR.
0: A number of transmit data bytes exceeding the
[Clearing conditions]
•
•
1: The number of transmit data bytes in SCFTDR
[Setting conditions]
•
•
Note: * As SCFTDR is a 16-byte FIFO register, the
transmit trigger set number have been written to
SCFTDR
does not exceed the transmit trigger set number
When transmit data exceeding the transmit
trigger set number is written to SCFTDR, and 0
is written to the TDFE bit after reading TDFE = 1
When transmit data exceeding the transmit
trigger set number is written to SCFTDR by the
DMAC
Power-on reset or manual reset
When the number of SCFTDR transmit data
bytes is equal to or below the transmit trigger
set number as the result of a transmit operation*
maximum number of bytes that can be
written when TDFE = 1 is 16 – (transmit
trigger set number). Data written in excess
of this will be ignored. The number of data
bytes in SCFTDR is indicated by the upper
bits in SCFDR.