HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 808

• 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 19 Ethernet Controller Direct Memory Access Controller (E-DMAC)
Rev. 1.00 Dec. 27, 2005 Page 764 of 932
REJ09B0269-0100
Bit
29
28
Bit Name
RFP1
RFP0
Initial
Value
0
0
R/W
R/W
R/W
Description
Receive Frame Position 1, 0
The E-DMAC indicates by write-back operation
whether information of the corresponding descriptor
represents information about the start, middle, or end
of the receive frame.
00: The information of the descriptor represents
01: The information of the descriptor represents
10: The information of the descriptor represents
11: The information of the descriptor represents all
Reference:
The relationship between a frame after reception of
one frame and a descriptor is described below.
[For single-frame/single-descriptor operation]
First descriptor: RFP[1:0] = 11
[For single-frame/two-descriptor operation]
First descriptor: RFP[1:0] = 10
Second descriptor: RFP[1:0] = 01
[For single-frame/three-descriptor operation]
First descriptor: RFP[1:0] = 10
Second descriptor: RFP[1:0] = 00
Third descriptor: RFP[1:0] = 01
When the number of divisions is large, a descriptor
row is configured by adding intermediate descriptors
with RFP[1:0] = 00.
information about the middle of the frame.
information about the end of the frame.
information about the start of the frame.
information about the frame (single-frame/single-
descriptor (single-buffer)).