DF2170VTE33 Renesas Electronics America, DF2170VTE33 Datasheet - Page 129
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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Bit
6
5
4, 3
Bit Name
RCDM
DDS
Initial
Value
0
0
All 0
R/W
R/W
R/W
R/W
RAS Down Mode
When access to DRAM space is interrupted by an
access to normal space, an access to an internal I/O
register, etc., this bit selects whether the RAS signal is
held low while waiting for the next DRAM access (RAS
down mode), or is driven high again (RAS up mode).
The setting of this bit is valid only when the BE bit is set
to 1.
If this bit is cleared to 0 when set to 1 in the RAS down
state, the RAS down state is cleared at that point, and
RAS goes high.
When using DRAM interface in RAS down mode and
RAS down state is not continued, a 1-state idle cycle is
inserted to drive RAS signal high.
0: RAS up mode selected for DRAM space access
1: RAS down mode selected for DRAM space access
Reserved
Description
DMAC Single Address Transfer Option
Selects whether full access is always performed or
burst access is enabled when DMAC single address
transfer is performed on the DRAM interface.
When the BE bit is cleared to 0 in DRAMCR, disabling
DRAM burst access, DMAC single address transfer is
performed in full access mode regardless of the setting
of this bit.
This bit has no effect on other bus master external
accesses or DMAC dual address transfers. If this bit is
set to 1, the DACK output timing is changed.
0: Full access is always executed
1: Burst access is enabled
These bits can be read from or written to. However, the
write value should always be 0.
Rev. 2.00, 03/04, page 95 of 534
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