AMD Geode™ SC3200 Processor Data Book
357
Electrical Specifications
32581C
9.2
DC Characteristics
Table 9-10 describes the signal buffer types of the SC3200.
(See Table 3-2 "BGD432 Ball Assignment - Sorted by Ball
Number" on page 29 and Table 3-2 "BGU481 Ball Assign-
ment - Sorted by Ball Number" on page 29) for each sig-
nal’s buffer type.)
The subsections that follows provide detailed DC charac-
teristics according to buffer type.
Table 9-10. Buffer Types
Symbol
Description
Reference
Diode
Diodes only, no buffer
---
IN
AB
Input, ACCESS.bus compatible with Schmitt Trigger
Section 9.2.1
IN
BTN
Input, TTL compatible with Schmitt Trigger, low leakage
Section 9.2.2
IN
PCI
Input, PCI compatible
Section 9.2.3
IN
STRP
Input, Strap ball (min V
IH
is 0.6V
IO
) with weak pull-down
Section 9.2.4
IN
T
Input, TTL compatible
Section 9.2.5
IN
TS
Input, TTL compatible with Schmitt Trigger type 200 mV
Section 9.2.6
IN
TS1
Input, with Schmitt Trigger type 200 mV
Section 9.2.7
IN
USB
Input, USB compatible
Section 9.2.8
O
AC97
Output, Totem-Pole, AC97 compatible
Section 9.2.9
OD
n
Output, Open-Drain, capable of sinking
n
mA.Note 1
Section 9.2.10
OD
PCI
Output, Open-Drain, PCI compatible
Section 9.2.11
O
p/n
Output, Totem-Pole, capable of sourcing
p
mA and sinking
n
mA
Section 9.2.12
O
PCI
Output, PCI compatible, TRI-STATE
Section 9.2.13
O
USB
Output, USB compatible
Section 9.2.14
TS
p/n
Output, TRI-STATE, capable of sourcing
p
mA and sinking
n
mA
Section 9.2.15
WIRE
Wire, no buffer
---
Note 1.Output from these signals is open-drain and cannot be forced high.
Summary of Contents for Geode SC3200
Page 8: ...8 AMD Geode SC3200 Processor Data Book List of Figures 32581C...
Page 16: ...16 AMD Geode SC3200 Processor Data Book Overview 32581C...
Page 24: ...24 AMD Geode SC3200 Processor Data Book Architecture Overview 32581C...
Page 350: ...350 AMD Geode SC3200 Processor Data Book Debugging and Monitoring 32581C...
Page 420: ...420 AMD Geode SC3200 Processor Data Book Electrical Specifications 32581C...