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參數資料
型號: TPS65820RSHTG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 8-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC56
封裝: 7 X 7 MM, GREEN, PLASTIC, QFN-56
文件頁數: 86/98頁
文件大小: 2290K
代理商: TPS65820RSHTG4
GPIOs — I2C Registers
www.ti.com .............................................................................................................................................................. SLVS663B – MAY 2006 – REVISED APRIL 2008
Table 17. Recommended GPIO Configuration Procedure (continued)
GPIO MODE
I2C
I2C REGISTER BIT SETTING
ADDITIONAL DETAILS
REGISTERS
GPIO1=INPUT,
GPIO12 AND
GPIO1I/O=LO AND GPIO1INT=LO AND
SM1/SM2 converter standby set at
SM1/SM2 STANDBY
GPIO3
GPIO1LVL=HI AND GPIO1SM1=LO AND
V(GPIO1) = HI
CONTROL
GPIO1SMSBY=HI
GPIO1I/O=LO AND GPIO1INT=LO AND
SM1/SM2 converter standby set at
GPIO1LVL=LO AND GPIO1SM1=LO AND
V(GPIO1) = LO
GPIO1SMSBY=HI
The I2C registers that control GPIO-related functions are shown below. The HEX address for each register is
shown by the register name, together with the R or W functionality for the register bits. Shaded values indicate
default initial power-up values.
B7
B6
B5
B4
B3
B2
B1
B0
GPIO12, ADDRESS=1B, ALL BITS R/W
Bit Name
GPIO2I/O
GPIO1I/O
GPIO2OUT
GPIO1OUT
GPIO2LVL
GPIO1LVL
GPIO1SMSBY
GPIO1SM1
Function
GPIO2 MODE
GPIO1 MODE
SET GPIO2
SET GPIO1
GPIO2 EDGE
GPIO1 EDGE
GPIO 1
GPIO1
LEVEL
AND LEVEL
CONTROLS
(OUTPUT
DETECTION
SM1 AND SM2
SM1 ON/OFF
ONLY)
STANDBY
ON/OFF
When 0
INPUT
LOW
RISING EDGE,
DISABLED
LO LEVEL
When 1
OUTPUT
HIGH
FALLING
ENABLED
EDGE, HI
LEVEL
GPIO3, ADDRESS=1C, ALL BITS R/W
Bit Name
GPIO3I/O
GPIO3OUT
LDO0_EN
CHG_VOLT
RTC_SET
GPIO2 INT
GPIO1 INT
GPIO2SM2
Function
GPIO3 MODE
SET GPIO3
LDO0 ON/OFF
CHARGE
RTC_LDO
GPIO2
GPIO1
SM2 ON/OFF
LEVEL
CONTROL
VOLTAGE
OUTPUT
TRIGGERS
CONTROL
(OUTPUT
SAFETY BIT
VOLTAGE
INT:HI
→LO
INT:HI
→LO
ONLY)
When 0
INPUT
LOW
OFF
4.20 V
3.1 V
DISABLED
When 1
OUTPUT
HIGH
ON
4.36 V
2.6 V
ENABLED
Copyright 2006–2008, Texas Instruments Incorporated
87
Product Folder Link(s): TPS65820
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