CS5535-UDCF AMD (ADVANCED MICRO DEVICES), CS5535-UDCF Datasheet - Page 52

• 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

52
Function Name
SLEEP_X
SLEEP_Y
SMB_CLK_IN
SMB_CLK_OUT
SMB_DATA_IN
SMB_DATA_OUT
THRM_ALRM#
IDE_IRQ0
UART1_IR_TX
UART1_RX
UART1_IR_RX
UART1_TX
UART2_RX
UART2_TX
WORK_AUX
31506B
Table 3-9. GPIOx Available Functions Descriptions (Continued)
Ball
B12
No.
C2
G3
C3
D1
C9
F1
E3
E3
E1
E2
J3
GPIO[x]
GPIO12
GPIO14
GPIO15
GPIO10
GPIO24
GPIO7
GPIO2
GPIO8
GPIO9
GPIO8
GPIO3
GPIO4
Type
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
Description
Sleep X. This general purpose power control output becomes
active as the Geode CS5535 companion device enters and exits
various power management modes. It may be used by external
devices to control their power states synchronous with power state
changes in the Geode CS5535 companion device. It may be con-
figured as active high or active low.
Sleep Y. This general purpose power control output becomes
active as the Geode CS5535 companion device enters and exits
various power management modes. It may be used by external
devices to control their power states synchronous with power state
changes in the Geode CS5535 companion device. It may be con-
figured as active high or active low.
SMB Clock In / SMB Clock Out. This is the clock for the SMB. In
order to use it properly, the associated GPIO (GPIO14) should be
set to IN_AUX1 and OUT_AUX1 simultaneously. The SMB con-
troller determines the direction (in or out) of the associated ball.
SMB Data In / SMB Data Out. This is the data line for the SMB. In
order to use it properly, the associated GPIO (GPIO15) should be
set to IN_AUX1 and OUT_AUX1 simultaneously. The SMB con-
troller determines the direction (in or out) of the associated ball.
Thermal Alarm. When connected to an external thermal monitor,
this input can act as a thermal fail-safe to shut down power by sig-
nalling the power management controller to de-assert WORKING
and WORK_AUX. Set GPIO10 to the IN_AUX1 mode to enable
this feature.
IDE Interrupt. Indicates the external IDE device has completed
the DMA operation.
UART1 Infrared Transmit. This signal is the data output (TX)
from the infrared mode of UART1. It is available when GPIO8 is
switched to the OUT_AUX2 mode
UART1 Receive or UART1 Infrared Receive. This signal is the
data input (RX) to the UART1. It acts as the input in both IR and
conventional modes of UART1. It is available when GPIO9 is
switched to the IN_AUX1 mode.
UART1 Transmit. This signal is the data output (TX) from the con-
ventional mode of UART1. It is available when GPIO8 is switched
to the OUT_AUX1 mode.
UART2 Receive. This signal is the data input (RX) to the UART2.
It acts as the input of UART2. It is available when GPIO3 is
switched to the IN_AUX1 mode.
UART2 Transmit. This signal is the data output (TX) from the con-
ventional mode of UART2. It is available when GPIO4 is switched
to the OUT_AUX1 mode.
Working Auxiliary. This output is intended to be used to control
external power sources to all devices except memory (which is
intended to be controlled by WORKING). WORK_AUX de-asserts
in synchronism with WORKING.
AMD Geode™ CS5535 Companion Device Data Book
Signal Definitions