sc3200 Advanced Micro Devices, sc3200 Datasheet - Page 244

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

6.4.1.2
F0 Index 14h, Base Address Register 1 (F0BAR1) points to
the base address of the register space that contains the
configuration registers for LPC support. Table 6-31 gives
the bit formats of the I/O mapped registers accessed
through F0BAR1.
244
Offset 00h-03h
Note:
31:21
Bit
20
19
18
17
16
15
14
13
12
11
10
9
Some signals require additional programming to make them externally accessible. See Table 4-2 "Multiplexing, Interrupt Selec-
tion, and Base Address Registers" on page 88 for pin multiplexing details and Table 3-6 "Strap Options" on page 58 for
LPC_ROM strap information.
LPC Support Registers
Description
Reserved.
INTD Source. Selects the interface source of the INTD# signal.
0: PCI - INTD# (EBGA ball B22; TEPBGA ball AA2).
1: LPC - SERIRQ (EBGA ball AL8; TEPBGA ball J31).
INTC Source. Selects the interface source of the INTC# signal.
0: PCI - INTC# (EBGA ball H4; TEPBGA ball C9).
1: LPC - SERIRQ (EBGA ball AL8; TEPBGA ball J31).
INTB Source. Selects the interface source of the INTB# signal.
0: PCI - INTB# (EBGA ball AF1; TEPBGA ball C26).
1: LPC - SERIRQ (EBGA ball AL8; TEPBGA ball J31).
INTA Source. Selects the interface source of the INTA# signal.
0: PCI - INTA# (EBGA ball AE3; TEPBGA ball D26).
1: LPC - SERIRQ (EBGA ball AL8; TEPBGA ball J31).
Reserved. Set to 0.
IRQ15 Source. Selects the interface source of the IRQ15 signal.
0: ISA - IRQ15 (EBGA ball H30; TEPBGA ball AJ8).
1: LPC - SERIRQ (EBGA ball AL8; TEPBGA ball J31).
IRQ14 Source. Selects the interface source of the IRQ14 signal.
0: ISA - IRQ14 (EBGA ball D25; TEPBGA ball AF1).
1: LPC - SERIRQ (EBGA ball AL8; TEPBGA ball J31).
IRQ13 Source. Selects the interface source of the internal IRQ13 signal.
0: ISA - IRQ13 internal signal. (An input from the CPU indicating that a floating point error has been detected and that inter-
1: LPC - SERIRQ (EBGA ball AL8; TEPBGA ball J31).
IRQ12 Source. Selects the interface source of the IRQ12 signal.
0: ISA - IRQ12 (unavailable externally).
1: LPC - SERIRQ (EBGA ball AL8; TEPBGA ball J31).
IRQ11 Source. Selects the interface source of the IRQ11 signal.
0: ISA - IRQ11 (unavailable externally).
1: LPC - SERIRQ (EBGA ball AL8; TEPBGA ball J31).
IRQ10 Source. Selects the interface source of the IRQ10 signal.
0: ISA - IRQ10 (unavailable externally).
1: LPC - SERIRQ (EBGA ball AL8; TEPBGA ball J31).
IRQ9 Source. Selects the interface source of the IRQ9 signal.
0: ISA - IRQ9 (EBGA ball C22; TEPBGA ball AA3).
1: LPC - SERIRQ (EBGA ball AL8; TEPBGA ball J31).
nal INTR should be asserted.)
Table 6-31. F0BAR1+I/O Offset: LPC Interface Configuration Registers
Revision 5.1
SERIRQ_SRC — Serial IRQ Source Register (R/W)
Core Logic Module - Bridge, GPIO, and LPC Registers - Function 0
The LPC Interface supports all features described in the
LPC bus specification 1.0, with the following exceptions:
• Only 8- or 16-bit DMA, depending on channel number.
• Only one external DRQ pin.
Does not support the optional larger transfer sizes.
AMD Geode™ SC3200 Processor Data Book
Reset Value: 00000000h