cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 39

• Manufacturer Part Number: cs5535
• Description: Geode Cs5535 Companion Multi-function South Bridge
• Manufacturer: National Semiconductor Corporation

Revision 0.8
Signal Definitions
2.2.5
Signal Name
SMB_CLK
SMB_DATA
System Management Bus (SMB) Interface
Ball No.
(Continued)
G3
F1
Type
I/O
I/O
Description
SMB Clock. This is the clock for the System Management bus. It is
initiated by the master of the current transaction. Data is sampled dur-
ing the high state of the clock.
An external pull-up resistor is required.
Shared with GPIO14. Set GPIO14 to AUX_IN and AUX_OUT_1
modes simultaneously to use as SMB_CLK. See Table 2-8 "GPIO
Options" on page 42.
External voltage applied to this ball should not exceed V
SMB Data. This is the bidirectional data line for the System manage-
ment Bus. Data may change during the low state of the SMB clock
and should remain stable during the high state.
An external pull-up resistor is required.
Shared with GPIO15. Set GPIO15 to AUX_IN and AUX_OUT_1
modes simultaneously to use as SMB_DATA. See Table 2-8 "GPIO
Options" on page 42.
External voltage applied to this ball should not exceed V
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