DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 195
![IC H8S MCU FLASH 128K 100-QFP](/photos/28/61/286108/100-tqfp_sml.jpg)
DF2148ATE20
Manufacturer Part Number
DF2148ATE20
Description
IC H8S MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148ATE20
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
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F2148ATE20
HD64F2148ATE20
HD64F2148ATE20
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2148ATE20IV
Manufacturer:
Renesas Electronics America
Quantity:
135
Company:
Part Number:
DF2148ATE20IV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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5.7.3
The interrupt controller has three main functions in DTC control.
Selection of Interrupt Source: It is possible to select DTC activation request or CPU interrupt
request with the DTCE bit of DTCERA to DTCERE in the DTC.
After a DTC data transfer, the DTCE bit can be cleared to 0 and an interrupt request sent to the
CPU in accordance with the specification of the DISEL bit of MRB in the DTC.
When the DTC performs the specified number of data transfers and the transfer counter reaches 0,
following the DTC data transfer the DTCE bit is cleared to 0 and an interrupt request is sent to the
CPU.
Determination of Priority: The DTC activation source is selected in accordance with the default
priority order, and is not affected by mask or priority levels. See section 7.3.3, DTC Vector Table,
for the respective priorities.
Operation Order: If the same interrupt is selected as a DTC activation source and a CPU
interrupt source, the DTC data transfer is performed first, followed by CPU interrupt exception
handling.
Table 5.10 summarizes interrupt source selection and interrupt source clearance control according
to the settings of the DTCE bit of DTCERA to DTCERE in the DTC and the DISEL bit of MRB
in the DTC.
Table 5.10 Interrupt Source Selection and Clearing Control
Legend:
*:
DTCE
0
1
: The relevant bit cannot be used.
: The relevant interrupt is used. Interrupt source clearing is performed.
: The relevant interrupt is used. The interrupt source is not cleared.
(The CPU should clear the source flag in the interrupt handling routine.)
Don’t care
Operation
Settings
DTC
DISEL
*
0
1
DTC
Interrupt Source Selection/Clearing Control
Rev. 4.00 Sep 27, 2006 page 149 of 1130
Section 5 Interrupt Controller
CPU
REJ09B0327-0400
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