HD64570F16 Renesas Electronics America, HD64570F16 Datasheet - Page 190
HD64570F16
Manufacturer Part Number
HD64570F16
Description
IC SCA SRL COMM ADAPTER 88QFP
Manufacturer
Renesas Electronics America
Datasheet
1.HD64570F16.pdf
(469 pages)
Specifications of HD64570F16
Applications
ISDN
Interface
Serial
Voltage - Supply
4.75 V ~ 5.25 V
Package / Case
88-QFP
Mounting Type
Surface Mount
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Operating Temp Range
-20C to 75C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
HD64570F16
Manufacturer:
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Quantity:
10 000
Part Number:
HD64570F16
Manufacturer:
HITACHI/日立
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Part Number:
HD64570F16V
Manufacturer:
INFINEON
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5.3
5.3.1
In asynchronous mode, a start bit and stop bit(s) are appended to the character before transmission
to synchronize character. In this mode, the transmission line is normally high (mark); when the
line goes low, that is, when a start bit is detected, data transmission starts.
The start bit is followed by data, which begins with the least significant bit (LSB), that is, bit 0.
The data may be optionally followed by a parity/MP bit. The data transmission ends with 1, 1.5,
or 2 stop bits.
Figure 5.10 shows the character format for asynchronous mode. In this mode, data is transmitted
and received in character units which may be 5 to 8 bits in length. When the character length is 5
to 7 bits, each received character is extended to 8 bits, by padding the high-order bits with 0s.
The PRTCL2 PRTCL0 bits of mode register 0 (MD0) specify asynchronous mode. The
TXCHR1 TXCHR0 and RXCHR1 RXCHR0 bits of mode register 1 (MD1) specify the character
length; the STOP1 STOP0 bits of MD0 specify the stop bit length (for details on how to set these
bits, see section 5.2.1, MSCI Mode Register 0 (MD0), and section 5.2.2, MSCI Mode Register 1
(MD1)); and the PMPM1 PMPM0 bits of MD1 specify the parity/MP bit setting. In
asynchronous mode, only the NRZ type code is available.
Rev. 0, 07/98, page 174 of 453
Operation
Asynchronous Mode
Start bit
1 bit
Figure 5.10 Character Format for Asynchronous Mode
D
0
5, 6, 7, or 8 bits
D
1
Unit of data
D
0 or 1 bit
n
Parity/
MP bit
Stop bit(s)
1, 1.5, or 2 bits
Idle state
(mark)
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