参数资料
型号: STPCC0390BTC3
厂商: STMICROELECTRONICS
元件分类: 外设及接口
英文描述: MULTIFUNCTION PERIPHERAL, PBGA388
封装: PLASTIC, BGA-388
文件页数: 10/59页
文件大小: 932K
代理商: STPCC0390BTC3
PIN DESCRIPTION
18/59
Issue 1.1 - October 16, 2000
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. Must be connected to
ground.
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