Tps62361 External Power Supply (Vdd_Mpu); Twl6030 Power Companion Ic - pandaboard OMAP4460 ES System Reference Manual

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System reference manual (83 pages)

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Table of Contents

2.4

The VDD_MPU balls on the OMAP4460 processor that power the ARM cores are supplied by an

external switch mode supply at U25. This device is a Texas Instruments TPS62361 switch mode supply

that is controllable via the smart reflex I2C interface of the OMAP4460 processor. Additionally, the

VSEL0 ball of the converter is controlled by an OMAP GPIO (GPIO_WK7). This part may be found on

sheet 2 of the schematics.

2.5

The TWL6030 device is a small (7 x 7 mm, 0.4mm pitch) 256 ball FBGA that provides many functions

used on the Platform. Shown below is a feature list of the major functions/interfaces provided by the

TWL6030 device that are utilized on the Panda platform. This list below doesn't include all device

functionality, just that which is used on the Pandaboard ES.

 A power management system (FSM)

 1 HS-I2C interface (≤ 2.4Mbits/s) for all Phoenix Power IC GP control commands (CTL-I2C)

 1 HS-I2C interface (≤ 2.4Mbits/s) for all Smart-Reflex Class 3 control commands (SR-I2C)

 MMC card detection mechanism

 A 24MHz RC oscillator

 A 32kHz RC oscillator for a fast device start-up

 A high-performance crystal oscillator, for 32.768kHz external crystal

 A Real Time Clock (RTC) resource

 Power supply resources:

 3 general-purpose enables for possible platform upgrades (REGEN1, REGEN2, SYSEN)

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OMAP4460 Pandaboard ES

System Reference Manual

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System and connecting peripherals