HD6417706F133 Renesas Electronics America, HD6417706F133 Datasheet - Page 278

• Manufacturer Part Number: HD6417706F133
• Description: IC SUPERH MPU ROMLESS 176LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417706F133

• Core Processor: SH-3
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 103
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.75 V ~ 2.05 V
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 176-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 8 Bus State Controller (BSC)
Refreshing
The bus state controller is provided with a function for controlling synchronous DRAM
refreshing. Auto-refreshing can be performed by clearing the RMODE bit to 0 and setting the
RFSH bit to 1 in MCR. If synchronous DRAM is not accessed for a long period, self-refresh
mode, in which the power consumption for data retention is low, can be activated by setting both
the RMODE bit and the RFSH bit to 1.
Rev. 5.00 May 29, 2006 page 228 of 698
REJ09B0146-0500
CKIO
Address
upper bits
A12 or A11 *
Address
lower bits *
CS2 or CS3
RASx
CASx
RD/WR
DQMxx
D31 to D0
BS
Notes: 1.
2.
2
Figure 8.23 Burst Write Timing (Different Row Addresses)
Command bit
Column address
1
Tp
Tr
Tc1
Tc2
Tc3
Td4