Filter
Top Products
62 AMD Geode™ SC3200 Processor Data Book
Signal Definitions
32581C
STB#/WRITE# A22 O Data Strobe. When low, indicates to the printer that valid
data is available at the printer port. This signal is in TRI-
STATE after a 0 is loaded into the corresponding control
register bit. An external 4.7 KΩ pull-up resistor should be
employed.
Write Strobe. Active low, used in EPP mode to denote
an address or data cycle. When the cycle is aborted,
WRITE# becomes inactive (high).
TFTD17+
F_FRAME#
3.4.12 Parallel Port Interface Signals (Continued)
Signal Name Ball No. Type Description Mux
3.4.13 Fast Infrared (IR) Port Interface Signals
Signal Name Ball No. Type Description Mux
IRRX1 AK8 I IR Receive. Primary input to receive serial data from the
IR transceiver. Monitored during power-off for wakeup
event detection.
Note: If selected as IRRX1 function but not used, tie
IRRX1 high.
SIN3
IRRX2/GPIO38 K28 I IR Receive 2. Auxiliary IR receiver input to support a
second transceiver. This input signal can be used when
GPIO38 is selected using PMR[14], and when
AUX_IRRX bit in register IRCR2 of the IR module in
internal SuperI/O is set.
LPCPD#
IRTX C11 O IR Transmit. IR serial output data. SOUT3