DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 770
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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Section 23 ROM
Notes on Use of Auto-Program Mode
Rev. 4.00 Sep 27, 2006 page 724 of 1130
REJ09B0327-0400
FA17 to FA0
FO7 to FO0
In auto-program mode, 128 bytes are programmed simultaneously. This should be carried out
by executing 128 consecutive byte transfers.
A 128-byte data transfer is necessary even when programming fewer than 128 bytes. In this
case, H'FF data must be written to the extra addresses.
The lower 8 bits of the transfer address must be H'00 or H'80. If a value other than an effective
address is input, processing will switch to a memory write operation but a write error will be
flagged.
Memory address transfer is performed in the second cycle (figure 23.20). Do not perform
transfer after the second cycle.
Do not perform a command write during a programming operation.
Perform one auto-programming operation for a 128-byte block for each address.
Characteristics are not guaranteed for two or more programming operations.
Confirm normal end of auto-programming by checking FO6. Alternatively, status read mode
can also be used for this purpose (FO7 status polling uses the auto-program operation end
identification pin).
The status polling FO6 and FO7 pin information is retained until the next command write.
Until the next command write is performed, reading is possible by enabling CE and OE.
FO7
FO6
WE
OE
CE
t
ces
t
f
(H8S/2148 F-ZTAT A-Mask Version, H8S/2147 F-ZTAT A-Mask Version, H8S/2144 F-ZTAT A-Mask Version)
Figure 23.20 Auto-Program Mode Timing Waveforms
t
wep
t
H'40
ds
t
t
ceh
dh
t
r
t
nxtc
t
as
Address
stable
Data
t
ah
1 byte to 128 bytes
Data transfer
Data
t
Programming wait
write
Programming operation
end identification signal
Programming normal
end identification signal
t
wsts
(1 to 3000 ms)
t
spa
FO0 to FO5 = 0
t
nxtc
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