DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 703
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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Note: If a memory cell does not operate normally and cannot be erased, one H'FF byte is
After bit rate adjustment, transmits
continuously at prescribed bit rate
of H'00 data transmitted by host
if data has already been written,
Host confirms normal reception
Set pins to boot program mode
indication (H'00), and transmits
memory data has been erased,
Check flash memory data, and
MCU transmits one H'AA data
one H'00 data byte to host to
sets value in bit rate register
After confirming that all flash
MCU calculates bit rate and
MCU measures low period
MCU transfers part of boot
indicate end of adjustment
of bit rate adjustment end
Host transfers data (H'00)
and execute reset-start
transmitted as an erase error, and the erase operation and subsequent operations
are halted.
After receiving H'55,
one H'55 data byte
Section 22 ROM
program to RAM
erase all blocks
byte to host
Start
Figure 22.8 Boot Mode Execution Procedure
(Mask ROM Version, H8S/2148 F-ZTAT, H8S/2147N F-ZTAT, H8S/2144 F-ZTAT, and H8S/2142 F-ZTAT)
Transmit one H'AA data byte to host,
upper byte followed by lower byte
program transferred to on-chip RAM
number of bytes to host as verify
control program to on-chip RAM
Transfer received programming
and execute programming control
program to host as verify data
MCU transmits received user
Host transmits user program
of user program bytes (N),
sequentially in byte units
MCU transmits received
Host transmits number
End of transmission
data (echo-back)
Rev. 4.00 Sep 27, 2006 page 657 of 1130
(echo-back)
n = N?
n = 1
Yes
No
REJ09B0327-0400
n + 1
n
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