D12312SVTE25 Renesas Electronics America, D12312SVTE25 Datasheet - Page 193

• Manufacturer Part Number: D12312SVTE25
• Description: MCU 3V 0K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12312SVTE25

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Type: ROMless
• 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: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: HD6412312SVTE25; HD6412312SVTE25

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
Notes: Hi-Z: High impedance
8-bit access
space
16-bit access
space
Invalid: Input state; input value is ignored.
Valid Strobes
Data Buses Used and Valid Strobes
Access
Size
Word
Byte
Byte
Read/
Write
Write
Read
Write
Read
Write
Read
Address
Even
Odd
—
—
—
—
Even
Odd
Valid
Strobe
HWR
LWR
RD
HWR, LWR Valid
RD
HWR
RD
Rev.7.00 Feb. 14, 2007 page 159 of 1108
Upper Data Bus
(D
Valid
Hi-Z
Valid
Valid
Valid
Invalid
15
to D
8
)
Section 6 Bus Controller
Lower Data Bus
(D
Invalid
Hi-Z
Invalid
Valid
Hi-Z
Valid
Valid
Valid
REJ09B0089-0700
7
to D
0
)