sc3200 Advanced Micro Devices, sc3200 Datasheet - Page 88
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sc3200
Manufacturer Part Number
sc3200
Description
Geode-tm Sc3200 Processor
Manufacturer
Advanced Micro Devices
Datasheet
1.SC3200.pdf
(447 pages)
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4.2
The registers described inTable 4-2 are used to determine
general configuration for the SC3200. These registers also
indicate which multiplexed signals are issued via balls from
which more than one signal may be output. For more infor-
88
Offset 30h-33h
This register configures pins with multiple functions. See Section 3.1 on page 27 for more information about multiplexing information.
31:30
Bit
29
28
27
Multiplexing, Interrupt Selection, and Base Address Registers
Description
Reserved: Always write 0.
Test Signals. Selects ball functions.
Ball #
EBGA / TEPBGA
D28 / AH3
C28 / AG4
B29 / AJ1
AL16 / V30
Test Signals. Selects ball function.
Ball #
EBGA / TEPBGA
AJ4 / E28
Note:
FPCI_MON (Fast-PCI Monitoring). Selects Fast-PCI monitoring output signals instead of Parallel Port signals.
Fast-PCI monitoring output signals can be enabled in two ways: by setting this bit to 1 or by strapping FPCI_MON (EBGA
ball D3 / TEPBGA ball A4) high. (The strapped value can be read back at MCR[30].) Listed below is how these two options
work together and the signals that are enabled (enabling overrides add’l dependencies except FPCI_MON = 1). Note that
the FPCI monitoring signals that are muxed with Audio signals are not enabled via this bit. They are only enabled using the
strap option.
Ball #
EBGA / TEPBGA
U3 / B18
U1 / A18
V3 / A20
V2 / C19
V1 / C18
W2 / C20
W3 / D20
Y1 / A21
AA1 / C21
T4 / C17
T3 / D17
T1 / B17
AA3 / D21
AB1 / A22
W1 / B20
AB2 / D22
Y3 / B21
AL15 / V31
AJ15 / U29
AK14 / U31
AL14 / U30
Table 4-2. Multiplexing, Interrupt Selection, and Base Address Registers
PMR[27] FPCI_MON
If this bit is set, PMR[8] and PMR[18] must be set by software.
0
0
1
1
Revision 5.1
0: Internal Test Signals
Name
PLL2B
PLL6B
PLL5B
GXCLK
0: AC97 Signal
Name
SIN2
0
1
0
1
FPCI_MON Signal Other Signal
FPCICLK
F_AD7
F_AD6
F_AD5
F_AD4
F_AD3
F_AD2
F_AD1
F_AD0
F_C/BE3#
F_C/BE2#
F_C/BE1#
F_C/BE0#
F_FRAME#
F_IRDY#
INTR_O
SMI_O
F_DEVSEL#
F_STOP#
F_GNT0#
F_TRDY#
Disable all Fast-PCI monitoring signals
Enable all Fast-PCI monitoring signals
Enable Fast-PCI monitoring signals muxed with Parallel Port signals only
Enable all Fast-PCI monitoring signals
Pin Multiplexing Register - PMR (R/W)
Add’l Dependencies
None
None
None
See PMR[23]
Add’l Dependencies
None
ACK#+TFTDE
PD7+TFTD13
PD6+TFTD1
PD5+TFT11
PD4+TFTD10
PD3+TFTD9
PD2+TFTD8
PD1+TFTD7
PD0_TFTD5
SLCT+TFTD15
PE+TFTD14
BUSY/WAIT#+TFTD3
ERR#+TFTD4
STB#/WRITE#+TFTD7
SLIN#/ASTRB#+TFTD16
AFD#/DSTRB#+TFTD2
INIT#+TFTD5
GPIO16+PC_BEEP
AC97_RST#
SDATA_IN
BIT_CLK
mation about multiplexed signals and the appropriate con-
figurations, see Section 3.1 "Ball Assignments" on page
27.
1: Internal Test Signals
Name
TEST0
TEST1
TEST2
TEST3
1: Internal Test Signal
Name
SDTEST3
AMD Geode™ SC3200 Processor Data Book
Add’l Dependencies
See PMR[23]
See PMR[23]
See PMR[23]
See PMR[23]
See PMR[23]
See PMR[23]
See PMR[23]
See PMR[23]
See PMR[23]
See PMR[23]
See PMR[23]
See PMR[23]
See PMR[23]
See PMR[23]
See PMR[23]
See PMR[23]
See PMR[23]
FPCI_MON = 1 and see PMR[0]
FPCI_MON = 1
FPCI_MON = 1
FPCI_MON = 1
Add’l Dependencies
None
None
None
PMR[23] = 0
Add’l Dependencies
See Note.
General Configuration Block
Reset Value: 00000000h
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