DF2357F20 Renesas Electronics America, DF2357F20 Datasheet - Page 204
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
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Quantity
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Company:
Part Number:
DF2357F20
Manufacturer:
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Quantity:
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DF2357F20IV
Manufacturer:
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7.2.4
DMACR is an 8-bit readable/writable register that controls the operation of each DMAC channel.
DMACR is initialized to H'00 by a reset, and in hardware standby mode.
Bit 7—Data Transfer Size (DTSZ): Selects the size of data to be transferred at one time.
Bit 6—Data Transfer Increment/Decrement (DTID): Selects incrementing or decrementing of MAR every data transfer
in sequential mode or repeat mode.
In idle mode, MAR is neither incremented nor decremented.
Bit 5—Repeat Enable (RPE): Used in combination with the DTIE bit in DMABCR to select the mode (sequential, idle,
or repeat) in which transfer is to be performed.
For details of operation in sequential, idle, and repeat mode, see section 7.5.2, Sequential Mode, section 7.5.3, Idle Mode,
and section 7.5.4, Repeat Mode.
Rev.6.00 Oct.28.2004 page 174 of 1016
REJ09B0138-0600H
Bit
DMACR
Initial value :
R/W
DMA Control Register (DMACR)
Bit 7
DTSZ
0
1
Bit 6
DTID
0
1
Bit 5
RPE
0
1
:
:
:
DTSZ
R/W
7
0
Description
Byte-size transfer
Word-size transfer
Description
MAR is incremented after a data transfer
MAR is decremented after a data transfer
DMABCR
DTIE
0
1
0
1
When DTSZ = 0, MAR is incremented by 1 after a transfer
When DTSZ = 1, MAR is incremented by 2 after a transfer
When DTSZ = 0, MAR is decremented by 1 after a transfer
When DTSZ = 1, MAR is decremented by 2 after a transfer
DTID5
R/W
6
0
Description
Transfer in sequential mode (no transfer end interrupt)
Transfer in sequential mode (with transfer end interrupt)
Transfer in repeat mode (no transfer end interrupt)
Transfer in idle mode (with transfer end interrupt)
RPE
R/W
5
0
DTDIR
R/W
4
0
DTF3
R/W
3
0
DTF2
R/W
2
0
DTF1
R/W
1
0
DTF0
R/W
0
0
(Initial value)
(Initial value)
(Initial value)
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