sc3200 Advanced Micro Devices, sc3200 Datasheet - Page 319

• Manufacturer Part Number: sc3200
• Description: Geode-tm Sc3200 Processor
• Manufacturer: Advanced Micro Devices

Core Logic Module - ISA Legacy Register Space
AMD Geode™ SC3200 Processor Data Book
I/O Port 040h
Write
Read
I/O Port 041h
Write
Read
Bit
7:0
5:4
3:1
7:0
5:4
3:1
7
6
0
7
6
0
Description
Counter Value.
Counter Output. State of counter output signal.
Counter Loaded. Indicates if the last count written is loaded.
0: Yes.
1: No.
Current Read/Write Mode.
00: Counter latch command.
01: R/W LSB only.
10: R/W MSB only.
11: R/W LSB, followed by MSB.
Current Counter Mode. 0-5.
BCD Mode.
0: Binary.
1: BCD (Binary Coded Decimal).
Counter Value.
Counter Output. State of counter output signal.
Counter Loaded. Indicates if the last count written is loaded.
0: Yes.
1: No.
Current Read/Write Mode.
00: Counter latch command.
01: R/W LSB only.
10: R/W MSB only.
11: R/W LSB, followed by MSB.
Current Counter Mode. 0-5.
BCD Mode.
0: Binary.
1: BCD (Binary Coded Decimal).
Table 6-45. Programmable Interval Timer Registers
PIT Timer 1 Counter (Refresh)
PIT Timer 1 Status (Refresh)
PIT Timer 0 Counter
PIT Timer 0 Status
Revision 5.1
319