DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 749

MCU 5V 128K I-TEMP,PB-FREE, 100-

DF2148RTE20IV

Manufacturer Part Number
DF2148RTE20IV
Description
MCU 5V 128K I-TEMP,PB-FREE, 100-
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Datasheets

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
-
Section 23 ROM
Note: If a memory cell does not operate normally and cannot be erased, one H'FF byte is transmitted as an erase error, and
the erase operation and subsequent operations are halted.
Figure 23.8 Boot Mode Execution Procedure
(H8S/2148 F-ZTAT A-Mask Version, H8S/2147 F-ZTAT A-Mask Version, H8S/2144 F-ZTAT A-Mask Version)
Set pins to boot mode and execute reset-start
Host transfers data (H'00) continuously at prescribed
bit rate
The chip measures low period of H'00 data transmitted
by host
The chip calculates bit rate and sets value in bit rate
register
After bit rate adjustment, transmits one H'00 data byte
to host to indicate end of adjustment
Host confirms normal reception of bit rate adjustment
end indication (H'00), and transmits one H'55 data byte
After receiving H'55, trransmit one H'AA data byte
to host
Host transmits number of user program bytes (N),
upper byte followed by lower byte
The chip transmits received number of bytes to host as
verify data (echo-back)
Host transmits programming control program
sequentially in byte units
The chip transmits received programming control
program to host as verify data (echo-back)
Transfer received programming control program
Check flash memory data, and if data has already
been written, erase all blocks
Check that all flash memory data has been erased
Check the starting ID code of the area to which the
programming control program is to be transferred
The chip transmits one H'AA data byte to the host
Execute programming control program transffered
to on-chip RAM
to on-chip RAM
End of transmission
ID code match?
n = N?
Start
n = 1
Yes
Yes
Rev. 4.00 Sep 27, 2006 page 703 of 1130
No
No
The chip transmits one H'FF
data byte as an ID code error
and stops the subsequent
operations
n + 1
n
REJ09B0327-0400

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