HD64F3029XBL25V Renesas Electronics America, HD64F3029XBL25V Datasheet - Page 273
HD64F3029XBL25V
Manufacturer Part Number
HD64F3029XBL25V
Description
MCU 5V 512K,PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.HD64F3029X25.pdf
(1012 pages)
Specifications of HD64F3029XBL25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 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
-
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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. 2.0, 06/04, page 244 of 980
Address
bus
RD
HWR
LWR
Address
bus
RD
HWR LWR
,
,
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
T
Figure 7.19 Timing of Multiple-Channel Operations
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
DMAC cycle (channel 0)
2
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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