DF2506BR26DV Renesas Electronics America, DF2506BR26DV Datasheet - Page 194

• Manufacturer Part Number: DF2506BR26DV
• Description: IC H8S/2506 MCU FLASH 176-LFBGA
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2500r

Specifications of DF2506BR26DV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 26MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 7 Bus Controller
7.6.2
Table 7.3 shows the data buses used and valid strobes for the access spaces.
In read access, the RD signal is valid without discrimination between the upper and lower halves
of the data bus.
In write access, the HWR signal is valid for the upper half of the data bus, and the LWR signal for
the lower half.
Table 7.3
Legend:
Hi-Z:
Invalid: Input state; input value is ignored.
Rev. 6.00 Sep. 24, 2009 Page 146 of 928
REJ09B0099-0600
Area
8-bit access
space
16-bit
access
space
High impedance
Figure 7.15 Access Sizes and Data Alignment Control (16-Bit Access Space)
Valid Strobes
Data Buses Used and Valid Strobes
Access
Size
Byte
Byte
Word
Byte size
Byte size
Word size
Longword
size
Read/
Write
Read
Write
Read
Write
Read
Write
· Even address
· Odd address
1st bus cycle
2nd bus cycle
Address
⎯
⎯
Even
Odd
Even
Odd
⎯
⎯
Valid Strobe
RD
HWR
RD
RD
HWR
LWR
RD
HWR, LWR
D15
Upper data bus
Upper Data Bus
(D15 to D8)
Valid
Valid
Valid
Invalid
Valid
Hi-Z
Valid
Valid
D8 D7
Lower data bus
D0
Lower Data Bus
(D7 to D0)
Invalid
Hi-Z
Invalid
Valid
Hi-Z
Valid
Valid
Valid