CS5535-UDCF AMD (ADVANCED MICRO DEVICES), CS5535-UDCF Datasheet - Page 162

• 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

5.15.4
The General Purpose Input and Output (GPIO) Interface is
illustrated in Figure 5-49. The figure represents one of
twenty-eight GPIOs potentially available. Note the GPIOs
[31:29] and [23] are non-existent. Table 3-8 "GPIO
Options" on page 47 provides a complete list of features for
each GPIO and should be consulted when configuring a
system.
Each GPIO has basic configuration options used to set up
the characteristics of the GPIO for either input or output.
Each of the functions in the list below follows the GPIO reg-
ister strategy outlined inSection 5.15.2 "Register Strategy"
on page 161 unless otherwise noted. This strategy allows
individual GPIOs to be modified without accidentally
changing the characteristics of unrelated GPIOs, and with-
out requiring ‘read-modify-write’ cycles. All values are
active high.
• OUT_EN. When high, enables this GPIO/OUT_AUX for
• IN_EN. Enables this GPIO/IN_AUX for input. A pad may
• OUT_VAL. This will establish the value driven to the pad
162
Interrupts
PME
[7:0]
[7:0]
output. A pad may be configured for output, input, or
both.
be configured for input, output, or both.
when it is selected as an Output, unless either
OUT_AUX1 or OUT_AUX2 are selected. The value
driven to the GPIO pad is subject to an optional inver-
sion.
AUX1
Status
Read
GPIO Basic I/O Configuration
Negative Edge
31506B
Event Enable
X,Y,Z,W Interrupt Mapping Registers
X,Y,Z,W PME Mapping Registers
Positive
Enable
Enable
Edge
Figure 5-49. GPIO Configuration
Count
Event
Counter
Event
Input Conditioning Functions
Event Count
Enable
Output
(1 of 8)
AUX1
AUX2
Value
• OUT_INVRT_EN. When high, inverts the
• IN_INVRT_EN. Inverts the signal applied to the ball, and
• OUT_OD_EN. Configures this GPIO/OUT_AUX for
• OUT_AUX1_SEL and OUT_AUX2_SEL. Selects an
• IN_AUX1_SEL. Selects an internal destination other
• PU_EN. Applies a weak pull-up to the pad. The effect of
• PD_EN. Applies a weak pull-down to the pad. The effect
GPIO/OUT_AUX Output Value.
presents the inverted value to all follow-up circuitry (i.e.,
input conditioning functions). Affects both GPIO and
IN_AUX.
open-drain operation. When the output pad is to be
driven low, the pad is driven low. When the output pad is
to be driven high, the pad is allowed to float and is not
driven.
internal auxiliary source for the Output Value. Table 3-8
"GPIO Options" on page 47 identifies all the possible
internal connections for these two auxiliary sources.
than the GPIO for the ball. Table 3-8 "GPIO Options" on
page 47 lists all the functions that may be connected in
this manner.
this control is independent of all other settings except
PD_EN. If PU_EN is set by software, PD_EN is auto-
matically cleared. Affects both GPIO and IN_AUX.
of this control is independent of all other settings except
PU_EN. If PD_EN is set by software, PU_EN is auto-
matically cleared. Affects both GPIO and IN_AUX.
Amount
Filter
Digital
AMD Geode™ CS5535 Companion Device Data Book
Filter
Enable
Open-Drain
Filter
Enable
Output
Enable
Enable
Invert
Input
General Purpose Input/Output
Output Invert
Enable
Enable
Input
Pull-Down
Pull-Up
Enable
Enable
Ball