DF2357F20 Renesas Electronics America, DF2357F20 Datasheet - Page 279
DF2357F20
Manufacturer Part Number
DF2357F20
Description
IC H8S MCU FLASH 5V 128K 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheet
1.D12392F20V.pdf
(1049 pages)
Specifications of DF2357F20
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
87
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
128-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2357F20
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Company:
Part Number:
DF2357F20IV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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8.3
8.3.1
When activated, the DTC reads register information that is already stored in memory and transfers data on the basis of that
register information. After the data transfer, it writes updated register information back to memory. Pre-storage of
register information in memory makes it possible to transfer data over any required number of channels. Setting the
CHNE bit to 1 makes it possible to perform a number of transfers with a single activation.
Figure 8-2 shows a flowchart of DTC operation.
The DTC transfer mode can be normal mode, repeat mode, or block transfer mode.
The 24-bit SAR designates the DTC transfer source address and the 24-bit DAR designates the transfer destination
address. After each transfer, SAR and DAR are independently incremented, decremented, or left fixed.
Table 8-2 outlines the functions of the DTC.
Operation
Overview
Read register information
Write register information
Clear an activation flag
Transfer Counter= 0
Read DTC vector
Data transfer
or DISEL= 1
No
No
CHNE=1
Figure 8-2 Flowchart of DTC Operation
Start
End
Yes
Yes
Next transfer
Interrupt exception
Clear DTCER
handling
Rev.6.00 Oct.28.2004 page 249 of 1016
REJ09B0138-0600H
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