R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 1014

• Manufacturer Part Number: R5S77631Y266BGV
• Description: IC SUPERH MPU ROMLESS 499BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R5S77631Y266BGV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 266MHz
• Connectivity: Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 107
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 499-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 23 Gigabit Ethernet Controller (GETHER)
Rev. 2.00 May 22, 2009 Page 944 of 1982
REJ09B0256-0200
Bit
29, 28
Bit
Name
TFP[1:0] 00
Initial
Value
R/W
R/W
Description
Transmit Frame Position
These bits indicate whether information of this descriptor
represents information about the start, middle, or end of the
transmit frame.
00: The information of the descriptor represents information
01: The information of the descriptor represents information
10: The information of the descriptor represents information
11: The information of the descriptor represents all
Reference
When one frame is divided for use, the method of specifying
this bit for a descriptor row according to the number of
divisions is described below.
•
•
•
When the number of divisions is large, a descriptor row is
configured by adding intermediate descriptors with TFP[1:0]
= 00.
about the middle of the frame.
about the end of the frame.
about the start of the frame.
information about the frame (single-frame/single-
descriptor (single-buffer)).
For single-frame/single-descriptor operation
First descriptor: TFP[1:0] = 11
For single-frame/two-descriptor operation
First descriptor: TFP[1:0] = 10
Second descriptor: TFP[1:0] = 01
For single-frame/three-descriptor operation
First descriptor: TFP[1:0] = 10
Second descriptor: TFP[1:0] = 00
Third descriptor: TFP[1:0] = 01