SC2200 NSC [National Semiconductor], SC2200 Datasheet - Page 260
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SC2200
Manufacturer Part Number
SC2200
Description
Thin Client On a Chip
Manufacturer
NSC [National Semiconductor]
Datasheet
1.SC2200.pdf
(433 pages)
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Core Logic Module
Offset 16h
This register contains the direct values of the GPWIO2-GPWIO0 pins. Write operations are valid only for bits defined as outputs. Reads
from this register read the last written value if the pin is an output. The pins are configured as inputs or outputs in F1BAR1+I/O Offset
15h.
Offset 17h
Offset 18h-1Bh
31:17
15:12
7:4
7:4
Bit
16
11
10
1
0
3
2
1
0
9
8
Description
GPWIO1_DIR. Selects the direction of GPWIO1.
0: Input.
1: Output.
GPWIO0_DIR. Selects the direction of the GPWIO0.
0: Input.
1: Output.
Reserved. Must be set to 0.
Reserved.
GPWIO2_DATA. Reflects the level of GPWIO2.
0: Low.
1: High.
A fixed high-to-low or low-to-high transition (debounce period) of 31 µs exists in order for GPWIO2 to be recognized.
GPWIO1_DATA. Reflects the level of GPWIO1.
0: Low.
1: High.
See F1BAR1+I/O Offset 07h[3] for debounce information.
GPWIO0_DATA. Reflects the level of GPWIO0.
0: Low.
1: High.
See F1BAR1+I/O Offset 07h[3] for debounce information.
Reserved.
PCTL_DELAYEN. Allow staggered delays on the activation and deactivation of the power control pins PWRCNT1,
PWRCNT2, and ONCTL# by 2 msec each.
0: Disable. (Default)
1: Enable.
Reserved. Must be set to 0.
PLVL3_SMIEN. Allow SMI generation when the PLVL3 Register (F1BAR1+I/O Offset 05h) is read.
0: Disable.
1: Enable. (Default)
Top level SMI status is reported at F1BAR0+I/O Offset 00h/02h[2].
Second level SMI status is reported at F1BAR0+I/O Offset 20h/22h[4].
Reserved. Must be set to 0.
SLP_SMIEN. Allow SMI generation when the SLP_EN bit (F1BAR1+I/O Offset 0Ch[13]) is set.
0: Disable.
1: Enable. (Default)
Top level SMI status is reported at F1BAR0+I/O Offset 00h/02h[2].
Second level SMI status is reported at F1BAR0+I/O Offset 20h/22h[2].
THT_SMIEN. Allow SMI generation when the THT_EN bit (F1BAR1+I/O Offset 00h[4]) is set.
0: Disable.
1: Enable. (Default)
Top level SMI status is reported at F1BAR0+I/O Offset 00h/02h[2].
Second level SMI status is reported at F1BAR0+I/O Offset 20h/22h[1].
Reserved. Must be set to 0.
Table 5-34. F1BAR1+I/O Offset: ACPI Support Registers (Continued)
(Continued)
ACPI SCI_ROUTING Register (R/W)
GPWIO Data Register (R/W)
Reserved
260
Reset Value: 00000F00h
Reset Value: 00h
Reset Value: 00h
Revision 3.0
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