R5F61662N50FPV Renesas Electronics America, R5F61662N50FPV Datasheet - Page 351
R5F61662N50FPV
Manufacturer Part Number
R5F61662N50FPV
Description
MCU 24KB FLASH 384K 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8SX/1600r
Datasheet
1.R0K561622S000BE.pdf
(1070 pages)
Specifications of R5F61662N50FPV
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
384KB (384K 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
144-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R5F61662N50FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Figure 9.32 shows an example of block transfer mode activated by the DREQ signal low level.
The DREQ signal is sampled every cycle from the next rising edge of the Bφ signal immediately
after the DTE bit write cycle.
When a low level of the DREQ signal is detected while a transfer request by the DREQ signal is
enabled, a transfer request is held in the DMAC. When the DMAC is activated, the transfer
request is cleared. Receiving the next transfer request resumes after completion of the write cycle
and then a low level of the DREQ signal is detected. This operation is repeated until the transfer is
completed.
Bφ
DREQ
Address bus
DMA
operation
Channel
[1]
[2][5] The DMAC is activated and the transfer request is cleared.
[3][6] A DMA cycle is started.
[4][7] Transfer request enable is resumed after completion of the write cycle.
After DMA transfer request is enabled, a low level of the DREQ signal is detected at the rising edge of the Bφ signal and a transfer
request is held.
(A low level of the DREQ signal is detected at the rising edge of the Bφ signal and a transfer request is held. This is the same as [1].)
Wait
Figure 9.32 Example of Transfer in Block Transfer Mode Activated
[1]
Request
Min. of 3 cycles
Bus released
[2]
Read
[3]
Duration of transfer
request disabled
DMA read
Transfer
source
cycle
1-block transfer
Write
by DREQ Low Level
Transfer request enable resumed
DMA write
destination
Transfer
cycle
Wait
[4]
Request
Min. of 3 cycles
Bus released
[5]
Rev. 2.00 Sep. 16, 2009 Page 321 of 1036
Read
[6]
Section 9 DMA Controller (DMAC)
Duration of transfer
DMA read
request disabled
Transfer
cycle
source
1-block transfer
Write
Transfer request enable resumed
DMA write
destination
Transfer
cycle
Wait
REJ09B0414-0200
[7]
Bus released
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