AMIS-30585 데이터 시트보기 (PDF) - ON Semiconductor
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AMIS-30585 Datasheet PDF : 23 Pages
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AMIS-30585
7.13 Pin 17: TXD
TXD is the digital output of the asynchronous serial communication (SCI) unit. Only half-duplex transmission is supported. It is used to
realize the communication between the AMIS-30585 and the application microcontroller. The TXD is an open drain IO (5V safe).
External pull-up resistances (typically 10K) are necessary to generate the 5V level. Refer to Figure 4 for the circuit schematic.
7.14 Pin 18: RXD
This is the digital input of the asynchronous SCI unit.
Only half-duplex transmission is supported. This pin supports a 5V level. It is used to realize the communication between the AMIS-
30585 and the application microcontroller. The RXD is a 5V safe input.
7.15 Pin 19: IO2
IO0, IO1 and IO2 are general-purpose digital input and output pins. See Pin 6 for detailed explanation.
7.16 Pin 20, 21: BR1, BR0
BR0 and BR1 are digital input pins. They are used to select the baud rate (bits/second) of the SCI unit. The rate is defined according to
Table 3. The values are taken into account after a reset, hardware or software. Modification of the baud rate during function is not
possible. BR0 and BR1 are 5V safe.
Table 3: BR1, BR0 Baud Rates
BR1
BR0
0
0
0
1
1
0
1
1
SCI Baud Rate
4800
9600
19200
38400
7.17 Pin 22: IO1
IO0, IO1 and IO2 are general-purpose digital input and output pins. See Pin 6 for detailed explanation.
7.18 Pin 23: RESB
RESB is a digital input pin. It is used to perform a hardware reset of the AMIS-30585. This pin supports a 5V voltage level. The reset is
active when the signal is low (0V).
7.19 Pin 24: TEST
TEST is a digital input pin. It is used to enable the test mode of the chip. Normal mode is activated when TEST signal is low (0V). For
normal operation, the TEST pin may be left unconnected. Thank to the internal pull-down, the signal is maintained to low (0V). TEST
pin is not 5V safe.
Rev. 2 | Page 9 of 23 | www.onsemi.com
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