HD64F2239TF20I Renesas Electronics America, HD64F2239TF20I Datasheet - Page 270
HD64F2239TF20I
Manufacturer Part Number
HD64F2239TF20I
Description
MCU 3V 384K I-TEMP 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Datasheet
1.DF2238RFA6V.pdf
(1048 pages)
Specifications of HD64F2239TF20I
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
72
Program Memory Size
384KB (384K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 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
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F2239TF20I
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 8 DMA Controller (DMAC)
IOAR can be used in short address mode but not in full address mode.
8.3.3
Execute Transfer Count Registers (ETCRA and ETCRB)
ETCR is a 16-bit readable/writable register that specifies the number of transfers.
The DMA has four ETCR registers: ETCR_0A in channel 0 (channel 0A), ETCR_0B in channel 0
(channel 0B), ETCR_1A in channel 1 (channel 1A), and ETCR_1B in channel 1 (channel 1B).
ETCR is not initialized by a reset or in standby mode.
Short Address Mode: The function of ETCR in sequential mode and idle mode differs from that
in repeat mode.
In sequential mode and idle mode, ETCR functions as a 16-bit transfer counter. ETCR is
decremented by 1 each time a transfer is performed, and when the count reaches H'00, the DTE bit
in DMABCRL is cleared, and transfer ends.
In repeat mode, ETCRL functions as an 8-bit transfer counter and ETCRH functions as a transfer
count holding register. ETCRL is decremented by 1 each time a transfer is performed, and when
the count reaches H'00, ETCRL is loaded with the value in ETCRH. At this point, MAR is
automatically restored to the value it had when the count was started. The DTE bit in DMABCRL
is not cleared, and so transfers can be performed repeatedly until the DTE bit is cleared by the
user.
Full Address Mode: The function of ETCR in normal mode differs from that in block transfer
mode.
In normal mode, ETCRA functions as a 16-bit transfer counter. ETCRA is decremented by 1 each
time a data transfer is performed, and transfer ends when the count reaches H'0000. ETCRB is not
used in normal mode.
In block transfer mode, ETCRAL functions as an 8-bit block size counter and ETCRAH functions
as a block size holding register. ETCRAL is decremented by 1 each time a 1-byte or 1-word
transfer is performed, and when the count reaches H'00, ETCRAL is loaded with the value in
ETCRAH. So by setting the block size in ETCRAH and ETCRAL, it is possible to repeatedly
transfer blocks consisting of any desired number of bytes or words.
In block transfer mode, ETCRB functions as a 16-bit block transfer counter. ETCRB is
decremented by 1 each time a block is transferred, and transfer ends when the count reaches
H'0000.
Rev. 6.00 Mar. 18, 2010 Page 208 of 982
REJ09B0054-0600
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