TXS02326A
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ZHCS863A –MAY 2012–REVISED AUGUST 2013
Table 2. Device Hardware Revision Register (00h)
Device HW Driver
Bits(s) Type (R/W) Description
Register
This register contains the manufacturer and device ID
(1)
(value to be
HW identification 7:0 R
specified by the manufacturer)
(1) The manufacturer ID part of this data shall remain unchanged when the HW revision ID is updated. The manufacturer ID shall uniquely
identify the manufacturer. The manufacturer ID is encoded on the MSB nibble.
Table 3. Device Software Revision Register (01h)
Device SW Driver
Bits(s) Type (R/W) Description
Register
This register contains information about the SW driver required for this
SW Driver Version 7:0 R device. This information shall only be updated when changes to the
device requires SW modifications. Initial register value is 00h
Table 4. Status Register (04h)
Status Register Bits(s) Type (R/W) Description
SDN signal state captured at the input pin
SDN Status 0 R '0' SDN signal at GND
'1' SDN signal at VDDIO level
SDN interrupt status
SDN Interrupt 1 R '0' No interrupt
'1' Interrupt occurred, (the read operation will automatically clear this bit)
'0' Battery present
Battery Status 2 R
'1' Battery not present, i.e. debounce counter expired
Battery removal interrupt status
Battery Removal Interrupt 3 R '0' No interrupt
'1' Interrupt occurred, (the read operation will automatically clear this bit)
Status of SIM1 interface
'00' Powered down with pull-downs activated
SIM1 Interface Status [1:0] 5:4
(1)
R '01' Isolated with pull-downs deactivated
'10' Powered with pull downs activated
'11' Active with pull downs deactivated
Status of SIM2 interface
'00' Powered down with pull-downs activated
SIM2 Interface Status [1:0] 7:6
(1)
R '01' Isolated with pull-downs deactivated
'10' Powered with pull downs activated
'11' Active with pull downs deactivated
(1) The content of bits 5:4 and 7:6 reflects the value written to the state bits in the SIM Interface control register 3:2 and 7:6 respectively
and the setting of the regulator bits in the SIM interface control register 0 and 4 respectively.
Table 5. State and Status Bit Mapping
SIM Interface Control Register SIM Interface Control Register
SIM Status Register (04h)
(08h) (08h)
SIM1 status bits 5:4 Comment
SIM1 interface state bits 3:2 SIM1 regulator control bit 0
SIM2 status bits 7:6
SIM2 interface state bits 7:6 SIM2 regulator control bit 4
'00' Powered down state with pull- '0' Regulator is off, regulator output is '00' Powered down with pulldowns
downs activated pulled down activated
'00' Powered down state with pull- '1' Regulator is powered on, regulator '10' Powered with totem pole pull-
downs activated output pull-down is released downs
The interface can
'01' Isolated state with pulldowns '0' Regulator is off, regulator output is '00' Powered down with pulldowns only be in isolated
deactivated pulled down activated state when the
interface is powered
'01' Isolated state with pulldowns '1' Regulator is powered on, regulator '01' Isolated with pull-downs
deactivated output pull-down is released deactivated
This combination
'0' Regulator is off, regulator output is '00' Powered down with pulldowns shall not be used. If
'10' Not allowed
pulled down activated used the status bit
coding is as specified
Copyright © 2012–2013, Texas Instruments Incorporated 5
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