D13007VX13V Renesas Electronics America, D13007VX13V Datasheet - Page 264
D13007VX13V
Manufacturer Part Number
D13007VX13V
Description
MCU 3V 0K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of D13007VX13V
Core Processor
H8/300H
Core Size
16-Bit
Speed
13MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
35
Program Memory Type
ROMless
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 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
-
Program Memory Size
-
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7. DMA Controller
7.4.10
During a DMAC transfer, if the bus right is requested by an external bus request signal (BREQ) or
by the DRAM interface (refresh cycle), the DMAC releases the bus after completing the transfer
of the current byte or word. If there is a transfer request at this point, the DMAC requests the bus
right again. Figure 7.20 shows an example of the timing of insertion of a refresh cycle during a
burst transfer on channel 0.
Rev.5.00 Sep. 12, 2007 Page 234 of 764
REJ09B0396-0500
φ
Address
bus
RD
HWR
LWR
φ
Address
bus
RD
HWR
,
External Bus Requests, DRAM Interface, and DMAC
DMAC cycle
(channel 1)
T
1
T
Figure 7.20 Bus Timing of DRAM Interface and DMAC
1
Figure 7.19 Timing of Multiple-Channel Operations
T
2
DMAC cycle (channel 0)
T
2
T
1
T
1
T
CPU
cycle
2
T
2
T
1
T
d
T
2
T
1
DMAC cycle
(channel 0A)
T
1
T
2
T
2
T
T
1
Refresh
cycle
1
T
T
2
2
T
T
1
d
CPU
cycle
T
T
2
DMAC cycle (channel 0)
1
T
T
d
2
T
T
1
1
DMAC cycle
(channel 1)
T
T
2
2
T
T
1
1
T
T
2
2
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