DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 208
DF2148RTE20IV
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
-
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Section 6 Bus Controller
6.4.3
Table 6.5 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 6.5
Area
8-bit access
space
16-bit access
space
Legend:
Undefined: Undefined data is output.
Invalid:
Port, etc.: Pins are used as port or on-chip supporting module input/output pins, and not as data
Rev. 4.00 Sep 27, 2006 page 162 of 1130
REJ09B0327-0400
Valid Strobes
Input state; input value is ignored.
bus pins.
Data Buses Used and Valid Strobes
Access
Size
Byte
Byte
Word
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
(D15 to D8)
Valid
Valid
Invalid
Valid
Undefined
Valid
Lower Data Bus
(D7 to D0)
Port, etc.
Port, etc.
Invalid
Valid
Undefined
Valid
Valid
Valid
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