DF2339VFC25V Renesas Electronics America, DF2339VFC25V Datasheet - Page 185

• Manufacturer Part Number: DF2339VFC25V
• Description: IC H8S/2300 MCU FLASH 144QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2339VFC25V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 106
• Program Memory Size: 384KB (384K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 4x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-QFP
• For Use With: EDK2329 - DEV EVALUATION KIT H8S/2329
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

6.3.5
The chip can output chip select signals (CS
when the corresponding external space area is accessed.
Figure 6.3 shows an example of CS
Enabling or disabling of CS
(DDR) bit for the port corresponding to the particular CS
the CS25 enable bit (CS25E).
In expanded mode with on-chip ROM disabled, the CS0 pin is placed in the output state after a
reset. Pins CS
well as bits CS/67E and CS25E should be set to 1 when outputting signals CS
In expanded mode with on-chip ROM enabled, pins CS
after a reset, so the corresponding DDR bits as well as bits CS/67E and CS25E should be set to 1
when outputting signals CS
For details, see section 9, I/O Ports.
When areas 2 to 5 are designated as DRAM space, outputs CS
Chip Select Signals
1
to CS
Address
bus
CS
φ
n
7
are placed in the input state after a reset, so the corresponding DDR bits as
Figure 6.3 CS
1
n
to CS
signal output is performed by setting the data direction register
7
.
n
(n = 0 to 7) output timing.
n
T
Signal Output Timing (n = 0 to 7)
1
Area n external address
0
to CS
Bus cycle
7
) to areas 0 to 7, the signal being driven low
T
2
0
Rev.4.00 Sep. 07, 2007 Page 153 of 1210
n
to CS
pin, the CS/67 enable bit (CS/67E), and
2
7
to CS
are all placed in the input state
T
3
5
are used as RAS signals.
1
to CS
REJ09B0245-0400
7
.