R5F61668RD50FPV Renesas Electronics America, R5F61668RD50FPV Datasheet - Page 599
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R5F61668RD50FPV
Manufacturer Part Number
R5F61668RD50FPV
Description
MCU 3V 1024K I-TEMP 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8SX/1600r
Datasheet
1.R5F61668RN50FPV.pdf
(1506 pages)
Specifications of R5F61668RD50FPV
Core Processor
H8SX
Core Size
16/32-Bit
Speed
50MHz
Connectivity
EBI/EMI, I²C, IrDA, SCI, SmartCard, USB
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
92
Program Memory Size
1MB (1M x 8)
Program Memory Type
FLASH
Eeprom Size
-
Ram Size
56K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
144-LQFP
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R5F61668RD50FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 599 of 1506
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12.2.4
DAR is a 32-bit register that designates the destination address of data to be transferred by the
DTC.
In full address mode, 32 bits of DAR are valid. In short address mode, the lower 24 bits of DAR is
valid and bits 31 to 24 are ignored. At this time, the upper eight bits are filled with the value of
bit 23.
If a word or longword access is performed while an odd address is specified in DAR or if a
longword access is performed while address 4n + 2 is specified in DAR, the bus cycle is divided
into multiple cycles to transfer data. For details, see section 12.5.1, Bus Cycle Division.
DAR cannot be accessed directly from the CPU.
12.2.5
CRA is a 16-bit register that designates the number of times data is to be transferred by the DTC.
In normal transfer mode, CRA functions as a 16-bit transfer counter (1 to 65,536). It is
decremented by 1 every time data is transferred, and bit DTCEn (n = 15 to 0) corresponding to the
activation source is cleared and then an interrupt is requested to the CPU when the count reaches
H'0000. The transfer count is 1 when CRA = H'0001, 65,535 when CRA = H'FFFF, and 65,536
when CRA = H'0000.
In repeat transfer mode, CRA is divided into two parts: the upper eight bits (CRAH) and the lower
eight bits (CRAL). CRAH holds the number of transfers while CRAL functions as an 8-bit
transfer counter (1 to 256). CRAL is decremented by 1 every time data is transferred, and the
contents of CRAH are sent to CRAL when the count reaches H'00. The transfer count is 1 when
CRAH = CRAL = H'01, 255 when CRAH = CRAL = H'FF, and 256 when CRAH = CRAL =
H'00.
In block transfer mode, CRA is divided into two parts: the upper eight bits (CRAH) and the lower
eight bits (CRAL). CRAH holds the block size while CRAL functions as an 8-bit block-size
counter (1 to 256 for byte, word, or longword). CRAL is decremented by 1 every time a byte
(word or longword) data is transferred, and the contents of CRAH are sent to CRAL when the
count reaches H'00. The block size is 1 byte (word or longword) when CRAH = CRAL =H'01,
255 bytes (words or longwords) when CRAH = CRAL = H'FF, and 256 bytes (words or
longwords) when CRAH = CRAL =H'00.
CRA cannot be accessed directly from the CPU.
DTC Destination Address Register (DAR)
DTC Transfer Count Register A (CRA)
Rev. 2.00 Sep. 24, 2008 Page 565 of 1468
Section 12 Data Transfer Controller (DTC)
REJ09B0412-0200
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