DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 619
![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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Section 17 Keyboard Buffer Controller
17.3.3
Receive Abort
The H8S/2148 Group and H8S/2147N device (system side) can forcibly abort transmission from
the device connected to it (keyboard side) in the event of a protocol error, etc. In this case, the
system holds the clock low. During reception, the keyboard also outputs a clock for
synchronization, and the clock is monitored when the keyboard output clock is high. If the clock is
low at this time, the keyboard judges that there is an abort request from the system, and data
transmission from the keyboard is aborted. Thus the system can abort reception by holding the
clock low for a certain period. A sample receive abort processing flowchart is shown in figure
17.7, and the receive abort timing in figure 17.8.
Rev. 4.00 Sep 27, 2006 page 573 of 1130
REJ09B0327-0400
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