HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 752

• 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 18 Ethernet Controller (EtherC)
1. When the transmit enable (TE) bit is set, the transmitter enters the transmit idle state.
2. When a transmit request is issued by the transmit E-DMAC, the EtherC sends the preamble
Rev. 1.00 Dec. 27, 2005 Page 708 of 932
REJ09B0269-0100
after a transmission delay equivalent to the frame interval time. If full-duplex transfer is
Transmission
Reset
halted
Legend
FDPX: Full-duplex
HDPX: Half-duplex
Notes:
1. Transmission retry processing includes both jam transmission that depends on collision
2. Transmission is retried only when data of 512 bits or less (including the preamble and
detection and the adjustment of transmission intervals based on the back-off algorithm.
SFD)is transmitted. When a collision is detected during the transmission of data greater
than 512 bits, only jam is transmitted and transmission based on the back-off algorithm
is not retried.
TE set
TE reset
Figure 18.3 EtherC Transmitter State Transitions
Idle
notification
retransfer attempts
after 512-bit time
Error
Failure of 15
HDPX
or collision
Normal transmission
Error detection
processing*
Retransfer
detection
detection
Carrier
FDPX
Carrier
non-detection
1
Carrier
Retransfer
initiation
Error
non-detection
Carrier
(preamble transmission)
Error
Collision
Start of transmission
Collision
Error
Collision*
Collision*
transmission
transmission
transmission
detection
Carrier
Data
CRC
SFD
2
2
HDPX
detection
Carrier
FDPX