Dc Characteristics; Table 9-10. Buffer Types - AMD Geode SC1200 Data Book

Electrical Specifications
9.2

DC Characteristics

Table 9-10 describes the signal buffer types of the SC1200/SC1201 processor. (See Table 3-2 on page 29 for each signal's
buffer type.) The subsections that follows provide detailed DC characteristics according to buffer type.
Symbol Description
Diode Diodes only, no buffer
IN Input, ACCESS.bus compatible with Schmitt Trigger
AB
IN Input, TTL compatible with Schmitt Trigger, low leakage
BTN
IN Input, PCI compatible
PCI
IN Input, Strap ball (min V
STRP
IN Input, TTL compatible
T
IN Input, TTL compatible with Schmitt Trigger type 200 mV
TS
IN Input, with Schmitt Trigger type 200 mV
TS1
IN Input, USB compatible
USB
O Output, Totem-Pole, AC97 compatible
AC97
OD Output, Open-Drain, capable of sinking n mA, see Note 1
n
OD Output, Open-Drain, PCI compatible
PCI
O Output, Totem-Pole, capable of sourcing p mA and sinking n mA
p/n
O Output, PCI compatible, TRI-STATE
PCI
O Output, USB compatible
USB
TS Output, TRI-STATE, capable of sourcing p mA and sinking n mA
p/n
WIRE Wire, no buffer
Note 1. Output from these signals is open-drain and cannot be forced high.
AMD Geode™ SC1200/SC1201 Processor Data Book

Table 9-10. Buffer Types

is 0.6V ) with weak pull-down
IH IO
32579B
Reference
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Section 9.2.1
Section 9.2.2
Section 9.2.3
Section 9.2.4
Section 9.2.5
Section 9.2.6
Section 9.2.7
Section 9.2.8
Section 9.2.9
Section 9.2.10
Section 9.2.11
Section 9.2.12
Section 9.2.13
Section 9.2.14
Section 9.2.15
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