DF2148BFA20 Renesas Electronics America, DF2148BFA20 Datasheet - Page 180
DF2148BFA20
Manufacturer Part Number
DF2148BFA20
Description
IC H8S MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148BFA20
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, IrDA, SCI, X-Bus
Peripherals
PWM, WDT
Number Of I /o
74
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F2148BFA20
HD64F2148BFA20
HD64F2148BFA20
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Section 6 Bus Controller (BSC)
6.3.1
BCR is used to specify the access mode for the external address space or the I/O area range when
the AS/IOS pin is specified as an I/O strobe pin.
Bit
7
6
5
4
3
2
1
0
Rev. 3.00 Mar 21, 2006 page 124 of 788
REJ09B0300-0300
Bit Name
—
ICIS0
BRSTRM
BRSTS1
BRSTS0
IOS1
IOS0
Bus Control Register (BCR)
Initial Value
1
1
0
1
0
0
1
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Reserved
This bit should not be written by 0.
Idle Cycle Insertion
Selects whether or not to insert 1-state of the idle
cycle between bus cycles when the external write
cycle follows the external read cycle.
0: Idle cycle not inserted when the external write cycle
1: 1-state idle cycle inserted when the external write
Burst ROM Enable
Selects the bus interface for the external address
space.
0: Basic bus interface
1: Burst ROM interface
Burst Cycle Select 1
Selects the number of states in the burst cycle of the
burst ROM interface.
0: 1 state
1: 2 states
Burst Cycle Select 0
Selects the number of words that can be accessed by
burst access via the burst ROM interface.
0: Max, 4 words
1: Max, 8 words
Reserved
This bit should not be written by 0.
IOS Select 1, 0
Select the address range where the IOS signal is
output. For details, refer to table 6.3.
follows the external read cycle
cycle follows the external read cycle
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