DF3048X16V Renesas Electronics America, DF3048X16V Datasheet - Page 204

• Manufacturer Part Number: DF3048X16V
• Description: MCU 5V 128K,PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048X16V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 7 Refresh Controller
Rev. 7.00 Sep 21, 2005 page 178 of 878
REJ09B0259-0700
Figure 7.8 Setup Procedure for 2WE
Set bits CKS2 to CKS0 in RTMCSR
Set P8 DDR to 1 for
Wait for DRAM to be initialized
Set area 3 for 16-bit access
DRAM can be accessed
Write H'23 in RFSHCR
1
Set RTCOR
WE
WE
WE 1-Mbit DRAM (1-Mbyte Mode)
3
output