R4F24268NVFQV Renesas Electronics America, R4F24268NVFQV Datasheet - Page 12

• Manufacturer Part Number: R4F24268NVFQV
• Description: MCU 256K FLASH 48K 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24268NVFQV

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SSU, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

6.4
6.5
6.6
6.7
Page xii of xxx
6.3.6
6.3.7
6.3.8
6.3.9
6.3.10 DRAM Access Control Register (DRACCR)....................................................... 179
6.3.11 Refresh Control Register (REFCR) ...................................................................... 182
6.3.12 Refresh Timer Counter (RTCNT)......................................................................... 185
6.3.13 Refresh Time Constant Register (RTCOR) .......................................................... 185
Bus Control........................................................................................................................ 186
6.4.1
6.4.2
6.4.3
6.4.4
Basic Bus Interface ............................................................................................................ 193
6.5.1
6.5.2
6.5.3
6.5.4
6.5.5
6.5.6
Address/Data Multiplexed I/O Interface............................................................................ 208
6.6.1
6.6.2
6.6.3
6.6.4
6.6.5
6.6.6
6.6.7
6.6.8
DRAM Interface ................................................................................................................ 222
6.7.1
6.7.2
6.7.3
6.7.4
6.7.5
6.7.6
6.7.7
6.7.8
6.7.9
Area 0 Burst ROM Interface Control Register (BROMCRH)
Area 1 Burst ROM Interface Control Register (BROMCRL) .............................. 167
Bus Control Register (BCR) ................................................................................. 168
Address/Data Multiplexed I/O Control Register (MPXCR) ................................. 170
DRAM Control Register (DRAMCR) .................................................................. 171
Area Division........................................................................................................ 186
Bus Specifications ................................................................................................ 187
Memory Interfaces................................................................................................ 189
Chip Select Signals ............................................................................................... 191
Data Size and Data Alignment.............................................................................. 193
Valid Strobes ........................................................................................................ 195
Basic Timing......................................................................................................... 196
Wait Control ......................................................................................................... 204
Read Strobe (RD) Timing..................................................................................... 205
Extension of Chip Select (CS) Assertion Period................................................... 207
Setting Address/Data Multiplexed I/O Space ....................................................... 208
Address/Data Multiplexing................................................................................... 208
Data Bus ............................................................................................................... 209
Address Hold Signal ............................................................................................. 209
Basic Timing......................................................................................................... 209
Wait Control ......................................................................................................... 218
Read Strobe (RD) Timing..................................................................................... 219
Extension of Chip Select (CS) Assertion Period in Data Cycle............................ 220
Setting DRAM Space............................................................................................ 222
Address Multiplexing ........................................................................................... 222
Data Bus ............................................................................................................... 223
Pins Used for DRAM Interface............................................................................. 224
Basic Timing......................................................................................................... 225
Column Address Output Cycle Control ................................................................ 227
Row Address Output State Control....................................................................... 228
Precharge State Control ........................................................................................ 230
Wait Control ......................................................................................................... 231