HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 480

• 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 12 Bus State Controller (BSC)
Mode register setting timing is shown in figure 12.29. A PALL command (all bank precharge
command) is firstly issued. A REF command (auto refresh command) is then issued 8 times. An
MRS command (mode register write command) is finally issued. Idle cycles, of which number is
specified by the TRP[1:0] bits in CSnWCR, are inserted between the PALL and the first REF. Idle
cycles, of which number is specified by the TRC[1:0]bits in CSnWCR, are inserted between REF
and REF, and between the 8th REF and MRS. Idle cycles, of which number is one or more, are
inserted between the MRS and a command to be issued next.
It is necessary to keep idle time of certain cycles for SDRAM before issuing PALL command after
power-on. Refer the manual of the SDRAM for the idle time to be needed. When the pulse width
of the reset signal is longer then the idle time, mode register setting can be started immediately
after the reset, but care should be taken when the pulse width of the reset signal is shorter than the
idle time.
Rev. 1.00 Dec. 27, 2005 Page 436 of 932
REJ09B0269-0100
Data Bus Width
16 bits
32 bits
Burst read/burst write (burst length 1):
CAS Latency
2
3
2
3
Access Address
H′A4FD5040
H′A4FD5060
H′A4FD5080
H′A4FD50C0
H′0000040
H′0000060
H′0000080
H′00000C0
External Address Pin