DF61654N50FTV Renesas Electronics America, DF61654N50FTV Datasheet - Page 327
![IC H8SX/1654 MCU FLASH 120TQFP](/photos/12/21/122199/df61654n50ftv_sml.jpg)
DF61654N50FTV
Manufacturer Part Number
DF61654N50FTV
Description
IC H8SX/1654 MCU FLASH 120TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8SX/1600r
Datasheet
1.DF61653N50FTV.pdf
(1020 pages)
Specifications of DF61654N50FTV
Core Processor
H8SX
Core Size
32-Bit
Speed
50MHz
Connectivity
I²C, IrDA, SCI, SmartCard, USB
Peripherals
DMA, PWM, WDT
Number Of I /o
75
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
40K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
120-TQFP, 120-VQFP
For Use With
HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK1657 - DEV EVAL KIT FOR H8SX/1657
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF61654N50FTV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 327 of 1020
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While data is being transferred, DDAR must be accessed in longwords. If the upper word and
lower word are read separately, incorrect data may be read from since the contents of DDAR
during the transfer may be updated regardless of the access by the CPU. Moreover, DDAR for the
channel being transferred must not be written to.
(3)
A DMA transfer decrements the contents of DTCR by the transferred bytes. When byte data is
transferred, DTCR is decremented by 1. When word data is transferred, DTCR is decremented by
2. When longword data is transferred, DTCR is decremented by 4. However, when DTCR = 0, the
contents of DTCR are not changed since the number of transfers is not counted.
While data is being transferred, all the bits of DTCR may be changed. DTCR must be accessed in
longwords. If the upper word and lower word are read separately, incorrect data may be read from
since the contents of DTCR during the transfer may be updated regardless of the access by the
CPU. Moreover, DTCR for the channel being transferred must not be written to.
When a conflict occurs between the address update by DMA transfer and write access by the CPU,
the CPU has priority. When a conflict occurs between change from 1, 2, or 4 to 0 in DTCR and
write access by the CPU (other than 0), the CPU has priority in writing to DTCR. However, the
transfer is stopped.
(4)
DBSR is enabled in block or repeat transfer mode. Bits 31 to 16 in DBSR function as BKSZH and
bits 15 to 0 in DBSR function as BKSZ. The BKSZH bits (16 bits) store the block size and repeat
size and its value is not changed. The BKSZ bits (16 bits) function as a counter for the block size
and repeat size and its value is decremented every transfer by 1. When the BKSZ value is to
change from 1 to 0 by a DMA transfer, 0 is not stored but the BKSZH value is loaded into the
BKSZ bits.
Since the upper 16 bits of DBSR are not updated, DBSR can be accessed in words.
DBSR for the channel being transferred must not be written to.
DMA Transfer Count Register (DTCR)
DMA Block Size Register (DBSR)
Rev.1.00 Sep. 08, 2005 Page 277 of 966
Section 7 DMA Controller (DMAC)
REJ09B0219-0100
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