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AMD Geode™ SC2200 Processor Data Book 77
General Configuration Block
32580B
25 AC97CKEN (Enable AC97_CLK Output). This bit enables the output drive of AC97_CLK (ball P31).
0: AC97_CLK output is HIZ.
1: AC97_CLK output is enabled.
24 TFTIDE (TFT/IDE). Determines whether certain balls are used for TFT signals or for IDE signals. Note that there are no
additional dependencies.
Ball # 0: IDE Signals 1: CRT, GPIO and TFT Signals
Name Name
A26 / AD3 IDE_ADDR0 TFTD3
C26 / AE1 IDE_ADDR1 TFTD2
C17 / U2 IDE_ADDR2 TFTD4
B24 / AC3 IDE_DATA0 TFTD6
A24 / AC1 IDE_DATA1 TFTD16
D23 / AC2 IDE_DATA2 TFTD14
C23 / AB4 IDE_DATA3 TFTD12
B23 / AB1 IDE_DATA4 FP_VDD_ON
A23 / AA4 IDE_DATA5 CLK27M
C22 / AA3 IDE_DATA6 IRQ9
B22 / AA2 IDE_DATA7 INTD#
A21 / Y3 IDE_DATA8 GPIO40
C20 / Y2 IDE_DATA9 DDC_SDA
A20 / Y1 IDE_DATA10 DDC_SCL
C19 / W4 IDE_DATA11 GPIO41
B19 / W3 IDE_DATA12 TFTD13
A19 / V3 IDE_DATA13 TFTD15
C18 / V2 IDE_DATA14 TFTD17
B18 / V1 IDE_DATA15 TFTD7
A27 / AF2 IDE_CS0# TFTD5
C16 / P2 IDE_CS1# TFTDE
C21 / Y4 IDE_IOR0# TFTD10
D24 / AD2 IDE_IOW0# TFTD9
C24 / AC4 IDE_DREQ0 TFTD8
C25 / AD4 IDE_DACK0# TFTD0
A22 / AA1 IDE_RST# TFTDCK
A25 / AD1 IDE_IORDY0 TFTD11
D25 / AF1 IRQ14 TFTD1
Table 4-2. Multiplexing, Interrupt Selection, and Base Address Registers (Continued)
Bit Description