DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 173
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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Figure 5.4 shows the timing of IRQnF setting.
The vector numbers for IRQ7 to IRQ0 interrupt exception handling are 23 to 16.
Detection of IRQ7 to IRQ0 interrupts does not depend on whether the relevant pin has been set for
input or output. Therefore, when a pin is used as an external interrupt input pin, clear the
corresponding DDR bit to 0 and do not use the pin as an I/O pin for another function. When the
IRQ6 pin is assigned as the IRQ6 interrupt input pin, then set the KMIMR6 bit to 0.
When the IRQ7 pin is used as the IRQ7 interrupt input pin, bits KMIMR15 to KMIMR8 must all
be set to 1. If any of these bits is cleared to 0, interrupt input from the IRQ7 pin will be ignored.
As interrupt request flags IRQ7F to IRQ0F are set when the setting condition is met, regardless of
the IER setting, only the necessary flags should be referenced.
IRQn
input pin
IRQnF
IRQn input
Note: n: 7 to 0
Figure 5.3 Block Diagram of Interrupts IRQ7 to IRQ0
IRQnSCA, IRQnSCB
detection circuit
Edge/level
Figure 5.4 Timing of IRQnF Setting
Clear signal
S
R
IRQnF
Rev. 4.00 Sep 27, 2006 page 127 of 1130
Q
IRQnE
Section 5 Interrupt Controller
REJ09B0327-0400
IRQn interrupt
request
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