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CS5535-UDC Datasheet(PDF) 47 Page - National Semiconductor (TI) |
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CS5535-UDC Datasheet(HTML) 47 Page - National Semiconductor (TI) |
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47 / 555 page  Revision 0.8 47 www.national.com Signal Definitions (Continued) SLEEP_X C2 GPIO7 O Sleep X. This general purpose power control output becomes active as the CS5535 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 CS5535. It may be configured as active high or active low. SLEEP_Y J3 GPIO12 O Sleep Y. This general purpose power control output becomes active as the CS5535 enters and exits various power-manage- ment modes. It may be used by external devices to control their power states synchronous with power state changes in the CS5535. It may be configured as active high or active low. SMB_CLK_IN G3 GPIO14 I 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 AUX_IN and AUX_OUT_1 simultaneously. The SMB con- troller determines the direction (in or out) of the associated ball. SMB_CLK_OUT O SMB_DATA_IN F1 GPIO15 I 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 AUX_IN and AUX_OUT_1 simultaneously. The SMB con- troller determines the direction (in or out) of the associated ball. SMB_DATA_OUT O THRM_ALRM# C3 GPIO10 I 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 AUX_IN mode to enable this feature. IDE_IRQ0 B12 GPIO2 I IDE Interrupt. Indicates the external IDE device has completed the DMA operation. UART1_IR_TX E3 GPIO8 O 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 AUX_OUT_2 mode UART1_RX D1 GPIO9 I 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 AUX_IN mode. UART1_IR_RX I UART1_TX E3 GPIO8 O 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 AUX_OUT_1 mode. UART2_RX E1 GPIO3 I 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 AUX_IN mode. UART2_TX E2 GPIO4 O UART2 Transmit. This signal is the data output (TX) from the con- ventional mode of UART1. It is available when GPIO4 is switched to the AUX_OUT_1 mode. WORK_AUX C9 GPIO24 O 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. 2.2.9 Debug and Manufacturing Test Interface Signal Name Ball No. Type Description TCK N2 I JTAG Test Clock. Table 2-9. GPIOx Available Functions Descriptions (Continued) Function Name Ball No. GPIO[x] Type Description |
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Similar Description - CS5535-UDC |
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