HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 782

• 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 738 of 932
REJ09B0269-0100
Bit
17
16
15 to 12
11
10
9
Bit Name
RDE
RFOF

CND
DLC
CD
Initial
Value
0
0
All 0
0
0
0
R/W
R/W
R/W
R
R/W
R/W
R/W
Description
Receive Descriptor Empty
Indicates that the RACT bit of a receive descriptor
read by the E-DMAC for receive DMA is cleared to 0
(invalid).
When receive descriptor empty (RDE = 1) occurs,
reception can be resumed by setting the RACT bit
(cleared to 0) of the receive descriptor to 1 and
writing 1 to the RR bit in EDRRR.
0: Receive descriptor active bit RACT = 1 detected
1: Receive descriptor active bit RACT = 0 detected
Receive FIFO Overflow
Indicates that the receive FIFO has overflowed during
frame reception.
0: Overflow has not occurred
1: Overflow has occurred
Reserved
These bits are always read as 0. The write value
should always be 0.
Carrier Not Detect
Indicates the carrier detection status during preamble
transmission.
0: A carrier is detected when transmission starts
1: A carrier is not detected
Detect Loss of Carrier
Indicates that loss of the carrier has been detected
during frame transmission.
0: Loss of carrier not detected
1: Loss of carrier detected
Delayed Collision Detect
Indicates that a delayed collision has been detected
during frame transmission.
0: Delayed collision not detected
1: Delayed collision detected