CS
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100
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P2100 Series | User Manual
85
5.1.1.4 Sample Code in C Language
5.1.1.4.1 Control of GP70 to GP77
#define AddrPort 0x4E
#define DataPort 0x4F
<Enter the Extended Function Mode>
WriteByte(AddrPort, 0x87)
WriteByte(AddrPort, 0x87)
// Must write twice to enter Extended mode
<Select Logic Device>
WriteByte(AddrPort, 0x07)
WriteByte(dataPort, 0x06)
// Select logic device 06h
<Output/Input Mode Selection>
// Set GP70 to GP77 input Mode
WriteByte(AddrPort, 0x80)
// Select configuration register 80h
WriteByte(DataPort, (ReadByte(DataPort) ǀ 0x00))
// Set (bit 0~7) = 0 to select GP 70~77 as Input mode.
<Input Value>
WriteByte(AddrPort, 0x82)
// Select configuration register 82h
ReadByte(DataPort, Value)
// Read bit 0~7 (0xFF)= GP70 ~77 as High.
<Leave the Extended Function Mode>
WriteByte(AddrPort, 0xAA)
Summary of Contents for CS-100/P2100 Series
Page 14: ...CS 100 P2100 Series User Manual 14 Chapter 1 Product Introductions ...
Page 26: ...CS 100 P2100 Series User Manual 26 Chapter 2 Switches Connectors ...
Page 36: ...CS 100 P2100 Series User Manual 36 Chapter 3 System Setup ...
Page 60: ...CS 100 P2100 Series User Manual 60 ...
Page 62: ...CS 100 P2100 Series User Manual 62 Chapter 4 BIOS Setup ...
Page 81: ...CS 100 P2100 Series User Manual 81 Chapter 5 Product Application ...
Page 84: ...CS 100 P2100 Series User Manual 84 ...
Page 91: ...CS 100 P2100 Series User Manual 91 Reference Input Circuit Reference Output Circuit ...