Expansion Header | Xilinx ML403 instruction

ML403 Board Information

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If additional IIC devices are connected to the bus via the expansion header as shown in Figure 13, insert additional pull-up resistors on the external signals connected at pins 31 and 32. The resistor values are dependent on the voltage.

	HDR 1 X 32
	1
	2
	3
	4
	5	NC
	6
	7
	8
	9
	10	NC
	11	FPGA_PROM_CPLD_TMS
	12	FPGA_PROM_CPLD_TCK
	13	EXPANSION_TDO
	14	CPLD_TDO
	15	GPIO_LED_N
	16	GPIO_SW_N
	17	GPIO_LED_C
	18	GPIO_SW_C
	19	GPIO_LED_W
	20	GPIO_SW_W
	21	GPIO_LED_S
	22	GPIO_SW_S
	23	GPIO_LED_E
	24	GPIO_SW_E
	25	GPIO_LED_0
	26	GPIO_LED_1	VCC2V5
	27	GPIO_LED_2
	28	GPIO_LED_3	Level
	29	NC	Translation
	30	NC	MOSFETs
	30	NC	IIC_SCL
	31		IIC_SCL
	31
	32
	J3		IIC_SDA
	J3
		External pullups
		connect here	X979_13_012
			Internal pullups
			connect here

Figure 13: Expansion Header

XAPP979 (v1.0) February 26, 2007

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Image 11

Xilinx ML403 specifications Expansion Header

Contents

Included Systems Summary Introduction IntroductionIIC Primer Data Transfer on the IIC Bus Reference System Speciﬁcs Reference System Speciﬁcs OPB IIC Control Register Bits Name Description ML403 XC4VFX12 Address MapOPB IIC Registers OPB IIC Registers Address Status Register SR Status Register Bit Deﬁnitions Contd Microchip 24LC04 Conﬁguring the OPB IIC Core 24LC04 Control Byte Allocation ML40x Schematic for IIC Connections ML40x Resistors Expansion Header Fpga IIC Pins TotalPhase Aardvark Adapter Aardvark Control Center Software Projects Executing the Reference System from EDK Projects interfacing to Aardvark Adapter Project Running the ApplicationsRunning the Applications HyperTerminal Parameters Run Start → Programs → ChipScope Pro → ChipScope Inserter Using ChipScope with OPB IICInvoke XPS. Run Hardware → Generate Netlist Start → Programs → ChipScope Pro → ChipScope Pro Analyzer Making Net Connections in ChipScope Inserter Setting Up the Chipscope Trigger Linux Kernel Linux Kernel BSP Settings Connected Peripherals Simulation Simulation OPB IIC Simulation Signal Name Functionality Complete Simulation Arbitrartion Lost Test Simulation Arbitration Lost Test Code Simulation with iicAA as Master Test code with iicAA as Master X97934012907 Test Code for Simulation with iic20 as Master Revision RevisionHistory References