DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 771

• Manufacturer Part Number: DS72030W200FPV
• Description: MPU, 32BIT, SH7203, ROMLESS, 240QFP
• Manufacturer: Renesas Electronics America
• Series: SH7200r

Specifications of DS72030W200FPV

• Core Size: 32bit
• Program Memory Size: 32KB
• Cpu Speed: 200MHz
• Digital Ic Case Style: QFP
• No. Of Pins: 240
• Supply Voltage Range: 1.1V To 1.3V
• Operating Temperature Range: -20°C To +85°C
• Svhc: No SVHC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Bit
5
Bit Name
TDFE
Initial
Value
1
R/W
R/(W)* Transmit FIFO Data Empty
Section 15 Serial Communication Interface with FIFO (SCIF)
Description
Indicates that data has been transferred from the
transmit FIFO data register (SCFTDR) to the transmit
shift register (SCTSR), the quantity of data in
SCFTDR has become less than the transmission
trigger number specified by the TTRG[1:0] bits in the
FIFO control register (SCFCR), and writing of transmit
data to SCFTDR is enabled.
0: The quantity of transmit data written to SCFTDR is
[Clearing conditions]
•
•
1: The quantity of transmit data in SCFTDR is less
[Setting conditions]
•
•
Note:
greater than the specified transmission trigger
number
than or equal to the specified transmission trigger
number*
TDFE is cleared to 0 when data exceeding the
specified transmission trigger number is written to
SCFTDR after 1 is read from TDFE and then 0 is
written
TDFE is cleared to 0 when DMAC is activated by
transmit FIFO data empty interrupt (TXI) and write
data exceeding the specified transmission trigger
number to SCFTDR
TDFE is set to 1 by a power-on reset
TDFE is set to 1 when the quantity of transmit
data in SCFTDR becomes less than or equal to
the specified transmission trigger number as a
result of transmission
*
Since SCFTDR is a 16-byte FIFO register,
the maximum quantity of data that can be
written when TDFE is 1 is "16 minus the
specified transmission trigger number". If
an attempt is made to write additional
data, the data is ignored. The quantity of
data in SCFTDR is indicated by the upper
8 bits of SCFDR.
Rev. 3.00 Sep. 28, 2009 Page 739 of 1650
REJ09B0313-0300