DF2170VTE33 Renesas Electronics America, DF2170VTE33 Datasheet - Page 155
DF2170VTE33
Manufacturer Part Number
DF2170VTE33
Description
MCU 3V 256K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Datasheet
1.DF2170BVTE33V.pdf
(572 pages)
Specifications of DF2170VTE33
Core Processor
H8S/2000
Core Size
16-Bit
Speed
33MHz
Connectivity
SCI, USB
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
76
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
HD64F2170VTE33
HD64F2170VTE33
HD64F2170VTE33
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2170VTE33V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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6.5.6
Some external I/O devices require a setup time and hold time between address and CS signals and
strobe signals such as RD, HWR, and LWR. Settings can be made in the CSACR register to insert
states in which only the CS, AS, and address signals are asserted before and after a basic bus space
access cycle. Extension of the CS assertion period can be set for individual areas. With the CS
assertion extension period in write access, the data setup and hold times are less stringent since the
write data is output to the data bus.
Figure 6.21 shows an example of the timing when the CS assertion period is extended in basic bus
3-state access space.
Both extension state T
basic bus cycle, or only one of these, can be specified for individual areas. Insertion or non-
insertion can be specified for the T
register, and for the T
Read
(when
RDNn = 0)
Write
Note: n = 3 to 0
Figure 6.21 Example of Timing when Chip Select Assertion Period is Extended
Extension of Chip Select (CS) Assertion Period
φ
Address bus
Data bus
Data bus
t
,
h
state with the lower 4 bits (CSXT3 to CSXT0).
inserted before the basic bus cycle and extension state T
h
state with the upper 4 bits (CSXH3 to CSXH0) in the CSACR
T
h
T
1
Bus cycle
T
Write data
2
Rev. 2.00, 03/04, page 121 of 534
Read data
T
3
t
inserted after the
T
t
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