GW80314GSSL7NK Datasheet, PDF (30/88 Pages) Intel Corporation – Intel® GW80314 I/O Companion Chip

Intel® GW80314 I/O Companion Chip
Package Information
3.1.11
Dual UART Signals
This section describes signals for the GW80314 dual UARTs. Signals in this group are 3.3 V
LVTTL compatible. On reset, GPIO[7:0] are GW80314 outputs driven to the value 0x88h and
remain driven until firmware configures.
Table 13. UART Signals
Pin Name
Count Pin Type
Description
UART0
U0_RX
U0_TX
U0_CTS#
U0_RTS#
U0_DSR#/
GPIO[6]
U0_DTR#/
GPIO[7]
U0_DCD#/
GPIO[4]
U0_RI#/
GPIO[5]
UART1
U1_RX
U1_TX
U1_CTS#
U1_RTS#
U1_DSR#/
GPIO[2]
U1_DTR#/
GPIO[3]
U1_DCD#/
GPIO[0]
U1_RI#/
GPIO[1]
UART Pin Count
1
I
Data In: Serial input data
1
O Data Out: Serial output data
1
I
Clear to Send: When low, this indicates that the MODEM or data set is ready
to exchange data.
1
O Request to Send: When low, this informs the MODEM or data set that the
UART is ready to exchange data.
1
IO Data Set Ready Output: When low, this indicates that the MODEM or data set
is ready to establish the communications link with the UART.
This pin is multiplexed with GPIO[6].
1
IO Data Terminal Ready Output: When low, this informs the MODEM or data set
that the UART is ready to establish a communications link.
This pin is multiplexed with GPIO[7].
1
IO Data Carrier Detect Output: When low, this indicates that the data carrier has
been detected by the MODEM or data set.
This pin is multiplexed with GPIO[4].
1
IO Ring Indicator Output: When low, this indicates that a telephone ringing signal
has been received by the MODEM or data set.
This pin is multiplexed with GPIO[5].
1
I
Data In: Serial input data
1
O Data Out: Serial output data
1
I
Clear to Send: When low, this indicates that the MODEM or data set is ready
to exchange data.
1
O Request to Send: When low, this informs the MODEM or data set that the
UART is ready to exchange data.
1
IO Data Set Ready Output: When low, this indicates that the MODEM or data set
is ready to establish the communications link with the UART.
This pin is multiplexed with GPIO[2].
1
IO Data Terminal Ready Output: When low, this informs the MODEM or data set
that the UART is ready to establish a communications link.
This pin is multiplexed with GPIO[3].
1
IO Data Carrier Detect Output: When low, this indicates that the data carrier has
been detected by the MODEM or data set.
This pin is multiplexed with GPIO[0].
1
IO Ring Indicator Output: When low, this indicates that a telephone ringing signal
has been received by the MODEM or data set.
This pin is multiplexed with GPIO[1].
16
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Datasheet