DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 273
DF3052BX25V
Manufacturer Part Number
DF3052BX25V
Description
MCU 5V 512K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of DF3052BX25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K 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
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3052BX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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8.6.8
When a transfer is aborted by clearing the DTE bit or suspended by an NMI that clears the DTME
bit, if this halts a channel for which the DMAC has a transfer request pending internally, a dead
cycle may occur. This dead cycle does not update the halted channel’s address register or counter
value. Figure 8.27 shows an example in which an auto-requested transfer in cycle-steal mode on
channel 0 is aborted by clearing the DTE bit in channel 0.
Address bus
RD
HWR, LWR
Bus Cycle when Transfer Is Aborted
Figure 8.27 Bus Timing at Abort of DMA Transfer in Cycle-Steal Mode
CPU cycle
T
1
T
2
T
d
T
1
DMAC cycle
T
2
T
1
T
2
Rev. 3.00 Mar 21, 2006 page 243 of 814
T
1
CPU cycle
DTE bit is
cleared
T
2
T
3
Section 8 DMA Controller
T
d
DMAC
cycle
T
REJ09B0302-0300
d
T
1
CPU cycle
T
2
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