STPCC03 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'STPCC03' PDF : 51 Pages View PDF
PIN DESCRIPTION
2.2.11 MISCELLANEOUS
SPKRD Speaker Drive. This the output to the
speaker and is AND of the counter 2 output with
bit 1 of Port 61, and drives an external speaker
driver. This output should be connected to 7407
type high voltage driver.
SCL, SDA I C Interface. These bidirectional pins
are connected to CRTC register 3Fh to implement
DDC capabilities. They conform to I2C electrical
specifications, they have open-collector output
drivers which are internally connected to VDD
through pull-up resistors.
They can be used for the DDC1 (SCL) and DDC0
(SDA) lines of the VGA interface.
SCAN_ENABLE Reserved. The pin is reserved
for Test and Miscellaneous functions.
20/51
Release B
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
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