DF2210CUNP24V Renesas Electronics America, DF2210CUNP24V Datasheet - Page 205
DF2210CUNP24V
Manufacturer Part Number
DF2210CUNP24V
Description
MCU 16BIT FLASH 3V 32K 64-QFN
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Datasheet
1.DF2218UTF24V.pdf
(758 pages)
Specifications of DF2210CUNP24V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
24MHz
Connectivity
SCI, SmartCard, USB
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 6x10b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
64-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Manufacturer
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Price
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Part Number:
DF2210CUNP24V
Manufacturer:
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135
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6.7.2
As with the basic bus interface, either program wait insertion or pin wait insertion using the WAIT
pin can be used in the initial cycle (full access) of the burst ROM interface. See section 6.6.4, Wait
Control.
Wait states cannot be inserted in a burst cycle.
6.8
When the H8S/2218 Group accesses external space, it can insert a 1-state idle cycle (T
bus cycles in the following two cases: (1) when read accesses between different areas occur
consecutively, and (2) when a write cycle occurs immediately after a read cycle. By inserting an
idle cycle it is possible, for example, to avoid data collisions between ROM, with a long output
floating time, and high-speed memory, I/O interfaces, and so on.
Consecutive Reads between Different Areas: If consecutive reads between different areas occur
while the ICIS1 bit in BCRH is set to 1, an idle cycle is inserted at the start of the second read
cycle.
Figure 6.22 shows an example of the operation in this case. In this example, bus cycle A is a read
cycle from ROM with a long output floating time, and bus cycle B is a read cycle from SRAM,
each being located in a different area. In (a), an idle cycle is not inserted, and a collision occurs in
cycle B between the read data from ROM and that from SRAM. In (b), an idle cycle is inserted,
and a data collision is prevented.
Wait Control
Idle Cycle
Rev.7.00 Dec. 24, 2008 Page 149 of 698
REJ09B0074-0700
I
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