SMH4046 Datasheet, PDF (20/51 Pages) List of Unclassifed Manufacturers – Hot-Swap, Active DC Output Control (ADOCTM) Power Manager with I2C lnterface

I²C 2-WIRE SERIAL INTERFACE (CONTINUED)
Register Access
The SMH4046 contains a 2-wire bus interface for
register access as explained in the previous section.
This bus is highly configurable, while maintaining the
industry standard protocol. The SMH4046 responds to
one of two selectable Device Type Addresses:
1010_BIN, generally assigned to NV-memories and the
default address for the SMH4046, or 1011_BIN. The
Device Type Address is assigned by programming bit
3 of Register 0x0E.
SMH4046
Preliminary Information
The configuration registers may be locked out by
setting bit 7 of register 0x0D high. This is a one-time,
non-reversible operation.
The SMH4046 has two virtual address pins, A[1:0] (set
with R0E[1:0]), associated with the 2-wire bus.
Slave Address Bus Address Register Type
1001_BIN
A2 A1 A0
Command and Status Registers,
ADC Conversion Readout
1010_BIN
A2 A1 0 2-k Bits of General-Purpose Memory
or
1011_BIN
A2 A1 1 Configuration Registers
Table 2 - Address bytes used by the SMH4046.
Summit Microelectronics, Inc
2082 1.7 08/23/04
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