DF2134AFA20V Renesas Electronics America, DF2134AFA20V Datasheet - Page 573
DF2134AFA20V
Manufacturer Part Number
DF2134AFA20V
Description
IC H8S/2100 MCU FLASH 80QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Datasheets
1.HEWH8E10A.pdf
(19 pages)
2.D12312SVTE25V.pdf
(341 pages)
3.DF2134AFA20V.pdf
(1063 pages)
Specifications of DF2134AFA20V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
IrDA, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
58
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
80-QFP
For Use With
3DK2166 - DEV EVAL KIT H8S/2166
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Quantity
Price
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Part Number:
DF2134AFA20V
Manufacturer:
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Quantity:
10 000
- Current page: 573 of 1063
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I
(Master transmit mode)
Other device
(Master transmit mode)
I
(Slave receive mode)
2
2
Notes on Arbitration Lost in Master Mode
The I
arbitration is lost in master mode and a transition to slave receive mode is automatically
carried out.
When arbitration is lost not in the first frame but in the second frame or subsequent frame,
transmit/receive data that is not an address is compared with the value set in the SAR or SARX
register as an address. If the receive data matches with the address in the SAR or SARX
register, the I
figure 16.24.)
In multi-master mode, a bus conflict could happen. When The I
master mode, check the state of the AL bit in the ICSR register every time after one frame of
data has been transmitted or received.
When arbitration is lost during transmitting the second frame or subsequent frame, take
avoidance measures.
Though it is prohibited in the normal I
bit is erroneously set to 1 and a transition to master mode is occurred during data transmission
or reception in slave mode. In multi-master mode, pay attention to the setting of the MST bit
when a bus conflict may occur. In this case, the MST bit in the ICCR register should be set to 1
according to the order below.
(a) Make sure that the BBSY flag in the ICCR register is 0 and the bus is free before setting
(b) Set the MST bit to 1.
C bus interface
C bus interface
the MST bit.
2
C bus interface recognizes the data in transmit/receive frame as an address when
Figure 16.24 Diagram of Erroneous Operation when Arbitration is Lost
2
C bus interface erroneously recognizes that the address call has occurred. (See
S
S
S
• Receive address is ignored
SLA
SLA
SLA
Transmit data match
Transmit timing match
R/W
R/W
R/W
2
C protocol, the same problem may occur when the MST
A
A
A
Section 16 I
• Arbitration is lost
• The AL flag in ICSR is set to 1
• Automatically transferred to slave
• Receive data is recognized as
• When the receive data matches to
an address
the address set in the SAR or SARX
register, the I
as a slave device
receive mode
SLA
DATA1
DATA2
Rev. 4.00 Jun 06, 2006 page 517 of 1004
2
C Bus Interface [H8S/2138 Group Option]
Transmit data does not match
2
C bus interface operates
R/W
2
A
A
C bus interface is operated in
DATA4
DATA3
REJ09B0301-0400
Data contention
A
A
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