W83627EHF_0611 Datasheet, PDF (20/144 Pages) Winbond – WINBOND LPC I/O

W83627EHF/EF, W83627EHG/EG
Serial Port & Infrared Port Interface, Continued.
SYMBOL PIN
I/O
FUNCTION
SOUTA
OUT₈
UART A Serial Output. It is used to transmit serial data out to the
communication link.
PENKBC
54
During power on reset, this pin is pulled down internally(20K ±
IN_t
30%)and is defined as PENKBC, which provides the power on
value for CR24 bit 2. A 1 kΩ is reserved to pull down and a 1 kΩ
is recommended if intends to pull up.
GP62
SOUTB
IRTX
I/O₈ General purpose I/O port 6 bit 2.
UART B Serial Output. It is used to transmit serial data out to the
OUT₈ ^{communication link.}
83
IR Transmitter output.
GP42*
DCDA#
GP61
DCDB#
GP41***
RIA#
I/OD₈ General purpose I/O port 4 bit 2.
56
IN_t
Data Carrier Detect. An active low signal indicates the modem or
data set has detected a data carrier.
I/OD₁₂ General purpose I/O port 6 bit 1.
84
IN_t
Data Carrier Detect. An active low signal indicates the modem or
data set has detected a data carrier.
I/OD₁₂ General purpose I/O port 4 bit 1.
57
IN_t
Ring Indicator. An active low signal indicates that a ring signal is
being received from the modem or data set.
GP60
57 I/OD₁₂ General purpose I/O port 6 bit 0.
RIB#
GP40*
85
IN_t
Ring Indicator. An active low signal indicates that a ring signal is
being received from the modem or data set.
I/OD₁₂ General purpose I/O port 4 bit 0.
Note. The * sign see 5.10.8 GPIO-1 and GPIO-4 with WDTO# / SUSLED / PLED multi-function
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