HD64F3048VTF8 Renesas Electronics America, HD64F3048VTF8 Datasheet - Page 190

• Manufacturer Part Number: HD64F3048VTF8
• Description: IC H8 MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3048VTF8

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 8MHz
• 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): 2.7 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F3048VX8

Section 7 Refresh Controller
Bit 3—Address Multiplex Mode Select (M9/M8
The setting of this bit is valid when PSRAME = 0 and DRAME = 1. This bit is write-disabled
when the PSRAME or DRAME bit is set to 1.
Bit 2—Refresh Pin Enable (RFSHE): Enables or disables refresh signal output from the RFSH
pin. This bit is write-disabled when the PSRAME or DRAME bit is set to 1.
Bit 1—Reserved: Read-only bit, always read as 1.
Bit 0—Refresh Cycle Enable (RCYCE): Enables or disables insertion of refresh cycles.
The setting of this bit is valid when PSRAME = 1 or DRAME = 1. When PSRAME = 0 and
DRAME = 0, refresh cycles are not inserted regardless of the setting of this bit.
Rev. 7.00 Sep 21, 2005 page 164 of 878
REJ09B0259-0700
Bit 3: M9/M8
0
1
Bit 2: RFSHE
0
1
Bit 0: RCYCE
0
1
M8
M8
M8
Description
8-bit column address mode
9-bit column address mode
Refresh signal output at the RFSH pin is disabled (the RFSH pin can be used
as a generic input/output port)
Refresh signal output at the RFSH pin is enabled
Description
Refresh cycles are disabled
Refresh cycles are enabled for area 3
Description
M8
M8
M8): Selects 8-bit or 9-bit column addressing.
(Initial value)
(Initial value)
(Initial value)