DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 211

• Manufacturer Part Number: DF2148RTE20IV
• Description: MCU 5V 128K I-TEMP,PB-FREE, 100-
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148RTE20IV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: Host Interface, I²C, IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

16-Bit, 2-State Access Space
Figures 6.7 to 6.9 show the bus timing for 16-bit, 2-state access space. When 16-bit access space is
accessed, the upper data bus (D15 to D8) is used for even addresses and the lower data bus (D7 to
D0) for odd addresses.
Wait states cannot be inserted.
Read
Write
AS/IOS (IOSE = 1)
AS/IOS (IOSE = 0)
Figure 6.7 16-Bit, 2-State Access Space Bus Timing (1)
Address bus
D15 to D8
D15 to D8
D7 to D0
D7 to D0
HWR
LWR
RD
(Even Address Byte Access)
T
1
Bus cycle
Rev. 4.00 Sep 27, 2006 page 165 of 1130
High
Undefined
Valid
T
2
Invalid
Valid
Section 6 Bus Controller
REJ09B0327-0400