MMPF0200Z datasheet(23/118 Pages) NXP

23 / 118 page

Analog Integrated Circuit Device Data



Freescale Semiconductor

PF0200Z

Functional Block Requirements and Behaviors

Start-up

6.1.2.4

Soft Start Ramp Rate

The start-up ramp rate or soft start ramp rate can be chosen from the same options as shown in Dynamic Voltage Scaling.

6.1.3

OTP Prototyping

It is possible to test the desired configuration by using the “Try Before Buy” feature, before permanently programming fuses. The

configuration is loaded from the OTP registers with this feature. These registers merely serve as temporary storage for the values

to be written to the fuses, for the values read from the fuses, or for the values read from the default configuration. To avoid

confusion, these registers will be referred to as the TBBOTP registers. The portion of the register map that concerns OTP is

shown in Table 121 and Table 122.

The contents of the TBBOTP registers are initialized to zero when a valid VIN is first applied. The values that are then loaded

into the TBBOTP registers depend on the setting of the VDDOTP pin and on the value of the TBB_POR and FUSE_POR_XOR

bits. Refer to Table 14.

• If VDDOTP = VCOREDIG (1.5 V), the values are loaded from the default configuration.

• If VDDOTP = 0.0 V, TBB_POR = 0 and FUSE_POR_XOR = 1, the values are loaded from the fuses. It is required to set all

the FUSE_PORx bits to load the fuses.

• If VDDOTP = 0.0 V, TBB_POR = 0 and FUSE_POR_XOR = 0, the TBBOTP registers remain initialized at zero.

The initial value of TBB_POR is always “0”; only when VDDOTP = 0.0 V and TBB_POR is set to “1” are the values from the

TBBOTP registers maintained and not loaded from a different source.

The contents of the TBBOTP registers are modified by I2C. To communicate with I2C, VIN must be valid and VDDIO, to which

SDA and SCL are pulled up, must be powered by a 1.7 to 3.6 V supply. VIN, or the coin cell voltage must be valid to maintain the

contents of the registers. To power on with the contents of the TBBOTP registers, the following conditions must exist; VIN is valid,

VDDOTP = 0.0 V, TBB_POR = 1 and there is a valid turn-on event.

6.1.4

Reading OTP Fuses

As described in the previous section, the contents of the fuses are loaded to the TBBOTP registers. When the following conditions

are met; VIN is valid, VDDOTP = 0.0 V, TBB_POR = 0, and FUSE_POR_XOR = 1. If ECC is enabled at the time the fuses were

programmed, the error corrected values can be loaded into the TBBOTP registers if desired. Once the fuses are loaded and a

turn-on event occurs, the PMIC will power on with the configuration programmed in the fuses.

Table 13. I2C Address Configuration

I2C_SLV_ADDR[3]

Hard Coded

I2C_SLV_ADDR[2:0]

I2C Device Address

(Hex)

000

0x08

001

0x09

010

0x0A

011

0x0B

100

0x0C

101

0x0D

110

0x0E

111

0x0F

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