
W83627UHG
Publication Release Date: March 24, 2008
-10-
Revision 1.44
SYMBOL
PIN
I/O
DESCRIPTION
GP32
I/OD
8
General-purpose I/O port 3 bit 2.
SOUTD
O
8
UART D Serial Output. This pin is used to transmit serial data out
to the communication link.
GPI_MUL
INcd
Determines PIN 107 and 108 multi-function select. During power-
on reset, this pin is pulled down internally and is defined as
BEEP function and power LED enable. A 1 k
Ω is reserved to pull
down and a 1 k
Ω resistor is recommended if intending to pull up
to enable GPIO output.
GP42
122
I/OD
8
General-purpose I/O port 4 bit 2.
SOUTE
O
8
UART E Serial Output. This pin is used to transmit serial data out
to the communication link.
GP52
2
I/OD
8
General-purpose I/O port 5 bit 2.
SOUTF
O
24
UART F Serial Output. This pin is used to transmit serial data out
to the communication link.
WD#
11
OD
24
Write data. This logic low open drain writes pre-compensation
serial data to the selected FDD. An open drain output.
DCDA#
56
IN
t
Data Carrier Detect. An active-low signal indicates the modem or
data set has detected a data carrier.
DCDB#
IN
t
Data Carrier Detect. An active-low signal indicates the modem or
data set has detected a data carrier.
GP11
84
I/OD
12t
General-purpose I/O port 1 bit 1.
DCDC#
IN
t
Data Carrier Detect. An active-low signal indicates the modem or
data set has detected a data carrier.
GP31
115
I/OD
12t
General-purpose I/O port 3 bit 1.
DCDD#
IN
t
Data Carrier Detect. An active-low signal indicates the modem or
data set has detected a data carrier.
GP41
123
I/OD
12t
General-purpose I/O port 4 bit 1.
DCDE#
IN
t
Data Carrier Detect. An active-low signal indicates the modem or
data set has detected a data carrier.
GP51
3
I/OD
12t
General-purpose I/O port 5 bit 1.
DCDF#
IN
t
Data Carrier Detect. An active-low signal indicates the modem or
data set has detected a data carrier.
WE#
13
OD
24
Write enable. An open drain output.
RIA#
57
IN
t
Ring Indicator. An active-low signal indicates that a ring signal is
being received from the modem or data set.
RIB#
IN
t
Ring Indicator. An active-low signal indicates that a ring signal is
being received from the modem or data set.
GP10
85
I/OD
12t
General-purpose I/O port 1 bit 0.
RIC#
116
IN
t
Ring Indicator. An active-low signal indicates that a ring signal is
being received from the modem or data set.