DF2367VF33 Renesas Electronics America, DF2367VF33 Datasheet - Page 195

• Manufacturer Part Number: DF2367VF33
• Description: MCU 3V 384K 128-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2367VF33

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 33MHz
• Connectivity: I²C, IrDA, SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 384KB (384K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2367VF33; HD64F2367VF33

6.3.8
DRAMCR is used to make DRAM/synchronous DRAM interface settings.
Bit
15
14
13
12
11
Bit Name
OEE
RAST
−
CAST
−
DRAM Control Register (DRAMCR)
Initial Value
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
Description
OE Output Enable
The OE signal used when EDO page mode
DRAM is connected can be output from the
(OE) pin. The OE signal is common to all
areas designated as DRAM space.
0: OE signal output disabled
1: OE signal output enabled
RAS Assertion Timing Select
Selects whether, in DRAM access, the RAS
signal is asserted from the start of the T
(rising edge of φ) or from the falling edge of φ.
Figure 6.4 shows the relationship between the
RAST bit setting and the RAS assertion timing.
The setting of this bit applies to all areas
designated as DRAM space.
0: RAS is asserted from φ falling edge in T
1: RAS is asserted from start of T
Reserved
Though this bit can be read from or written to,
the write value should always be 0.
Column Address Output Cycle Number Select
Selects whether the column address output
cycle in DRAM access comprises 3 states or 2
states. The setting of this bit applies to all
areas designated as DRAM space.
0: 2-state column address output cycle
1: 3-state column address output cycle
Reserved
Though this bit can be read from or written to,
the write value should always be 0.
(OE) pin can be used as I/O port
cycle
Rev.6.00 Mar. 18, 2009 Page 135 of 980
Section 6 Bus Controller (BSC)
REJ09B0050-0600
r
cycle
r
cycle
r