DF2328BVF25V Renesas Electronics America, DF2328BVF25V Datasheet - Page 204

• Manufacturer Part Number: DF2328BVF25V
• Description: IC H8S MCU FLASH 256K 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2328BVF25V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• For Use With: EDK2329 - DEV EVALUATION KIT H8S/2329
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: HD64F2328BVF25V

Section 6 Bus Controller
6.4.3
Table 6.4 shows the data buses used and valid strobes for the access spaces.
In a read, the RD signal is valid without discrimination between the upper and lower halves of the
data bus.
In a write, the HWR signal is valid for the upper half of the data bus, and the LWR signal for the
lower half.
Table 6.4
Area
8-bit access
space
16-bit access
space
Notes: Hi-Z: High impedance
Rev.6.00 Sep. 27, 2007 Page 172 of 1268
REJ09B0220-0600
Invalid: Input state; input value is ignored.
Valid Strobes
Data Buses Used and Valid Strobes
Access
Size
Word
Byte
Byte
Read/
Write
Read
Write
Read
Write
Read
Write
Address
Even
Odd
—
—
—
—
Even
Odd
Valid
Strobe
RD
HWR
RD
HWR
LWR
RD
HWR, LWR Valid
Upper Data Bus
(D
Valid
Hi-Z
Valid
Valid
Valid
Invalid
15
to D
8
)
Lower Data Bus
(D
Hi-Z
Valid
Valid
Valid
Invalid
Hi-Z
Invalid
Valid
7
to D
0
)