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TXS02326 Datasheet(PDF) 6 Page - Texas Instruments |
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TXS02326 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 35 page TXS02326 SCES795B – SEPTEMBER 2010 – REVISED NOVEMBER 2010 www.ti.com Table 5. State and Status Bit Mapping (continued) SIM interface control register SIM interface control register SIM status register bits 5:4 and Comment state bits 3:2 and 7:6 regulator control bits 0 and 4 7:6 '1' Regulator is powered on, '01' Isolated state with pulldowns '01' Isolated with pull-downs regulator output pull-down is deactivated deactivated released This combination shall not be '0' Regulator is off, regulator '00' Powered down with '10' Not allowed used. If used the status bit output is pulled down pulldowns activated coding is as specified '1' Regulator is powered on, This combination shall not be '10' Powered with pull downs 10' Not allowed regulator output pull-down is used. If used the status bit activated released coding is as specified '11' Active state with pull-downs '0' Regulator is off, regulator '00' Powered down with The interface can only be active deactivated output is pulled down pulldowns activated if it is powered '1' Regulator is powered on, 11' Active state with pull-downs '11' Active with pull-downs regulator output pull-down is deactivated deactivated released Table 6. SIM Interface Control Register (08h)(1)(2) Status Register Bit(s) Type (R/W) Description '0' Regulator is off, regulator output is pulled down SIM1 Regulator Control 0 R/W '1' Regulator is powered on, regulator output pull-down is released '0' 1.8 V SIM1 Regulator Voltage Selection 1 R/W '1' 2.95 V Status of SIM1 interface '00' Powered down state with pull-downs activated SIM1 Interface State [1:0] 3:2 R/W '01' Isolated state with pull-downs deactivated '10' Not allowed '11' Active state with pull downs deactivated '0' Regulator is off, regulator output is pulled down SIM2 Regulator Control 4 R/W '1' Regulator is powered on, regulator output pull-down is released '0' 1.8 V SIM2 Regulator Voltage Selection 5 R/W '1' 2.95 V Status of SIM2 interface '00' Powered down state with pull-downs activated SIM2 Interface State [1:0] 7:6 R/W '01' Isolated state with pull-downs deactivated '10' Not allowed '11' Active state with pull downs deactivated (1) Reset value: 00h (2) The state '10', on bits 3:2 and 7:6, is not prevented by HW but shall never be set by SW. State '10' means that the interface is powered with the pull-downs active, this state correspond to state '00' with the regulator being switched on. Setting the state to '10' does not have any impact on the corresponding regulator bit setting. The regulator control bits do not impact the state bits in this register. The regulator control bits however do impact the status bits in the status register. Table 7. Battery Presence Detection Debounce Counter (0Ah)(1)(2) BSI Debounce Counter Bits(s) Type (R/W) Description This register contains the BSI input debounce counter value. The value 00h Debounce Counter Value [7:0] 7:0 R/W means that the counter is not used, i.e. no debounce. (1) Reset value: 04h (2) Updating the register causes the counter to restart with the new value if the counter is counting when the register is updated. The new value shall take affect no later than one clock cycle (32 KHz) after the register has been updated. 6 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): TXS02326 |
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