CS5535-UDCF AMD (ADVANCED MICRO DEVICES), CS5535-UDCF Datasheet - Page 562

• Manufacturer Part Number: CS5535-UDCF
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of CS5535-UDCF

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

7.3.7
The signals detailed in this sub-section use an “SMB”
buffer type. For a detailed explanation of buffer types, see
Table 3-4 "Buffer Type Characteristics" on page 33.
The SMB utilizes a two-wire asynchronous protocol. Mas-
ter and slave devices are connected open-drain with an
external pull-up resistor. The SMB_CLK is not a free run-
ning fixed frequency signal, but rather a cooperatively gen-
erated signal with a minimum low time of 4.7 µs, minimum
high time of 4.0 µs, and 100 kHz frequency limit. The mini-
mum frequency is 10 kHz. The SMB_DATA signal is also
cooperatively driven. Communication on the SMB is via rel-
562
Signal
Bidirectional
SMB_CLK (GPIO14),
SMB_DATA (GPIO15)
System Management Bus (SMB) Signals
31506B
Parameter
Async Output or Level
Async Input
Table 7-15. SMB Timing Parameters
Min
NA
NA
ative manipulation of these two signals. The SMB Control-
ler and I/O cell incorporated within the Geode CS5535
companion device fully meets the requirements of the SMB
specification version 2.0.
In this subsection, unless otherwise noted:
• All timing specifications are specified under the oper-
ating conditions listed in Table 7-3 on page 546 (i.e.,
V
T
Max
CORE
CASE
NA
NA
AMD Geode™ CS5535 Companion Device Data Book
= All).
and V
Units
ns
ns
CORE_VSB
Comment/Condition
No clock reference.
No clock reference.
= All; V
IO
Electrical Specifications
and V
IO_VSB
= All;