outportb(0x4E, 0x07); //LDN selection register
3.10.4 Read/write GPIO sequence
1. Enter the extended function mode
2. Select logic device number
3. Read/write GPIO register value
4. Exit the extended function mode
3.10.5 Software programming example
Enter the extended function mode
Writing 87h to index address port twice will enter the extended function mode.
Example x86 assembly code:
mov dx, 4Eh
mov al, 87h
out dx, al
out dx, al
Example C code:
outportb(0x4E, 0x87);
outportb(0x4E, 0x87);
Exit the extended function mode
Writing AAh to index address port will exit the extended function mode.
Example x86 assembly code:
mov dx, 4Eh
mov al, 0AAh
out dx, al
Example C code:
outportb(0x4E, 0xAA);
Select logic device number
Example x86 assembly code:
mov dx, 4Eh
mov al, 007h ;LDN selection register
out dx, al
mov dx, 4Fh
mov al, 008h ;Select LDN=8, GPIO Port6
;or Select LDN9, GPIO Port2
out dx, al
Example C code:
Summary of Contents for PCH3582
Page 8: ...1 2 Dimensions Figure 1 1 Dimensions of PCH3582...
Page 9: ...Figure 1 2 Dimensions of PCH3782...
Page 10: ...Figure 1 3 Dimensions of PCH3982...
Page 33: ...1 4...
Page 64: ...Step 5 Click Next Step 6 Click Next to continue...
Page 68: ...Step 5 Click Install to begin the installation Step 6 Click Finish to compete the installation...
Page 70: ...Step 3 Click Yes to continue the installation Step 4 Wait for installation...
Page 71: ...Step 5 Select Yes I want to restart my computer now then click OK...
Page 75: ...Step 6 Wait for installation Then click Next to continue Step 7 Click OK...
Page 76: ...Step 8 Click Finish to compete installation...
Page 81: ...Setting...
Page 82: ...About This panel displays information about the PenMount controller and driver version...
