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参数资料
| 型号： | TCA8418EYFPR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, BGA25 |
| 封装： | 2 X 2 MM, 0.40 MM PITCH, DSBGA-25 |
| 文件页数： | 7/31页 |
| 文件大小： | 400K |
| 代理商： | TCA8418EYFPR |
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www.ti.com
SCPS222B – MAY 2010 – REVISED SEPTEMBER 2010
Table 4. Register Descriptions (continued)
REGISTER
ADDRESS
REGISTER NAME
7
6
5
4
3
2
1
0
DESCRIPTION
GPIO edge/level detect
N/A
C9IL
C8IL
0×28
GPIO_INT_LVL 3
0: low
0
1: high
Debounce disable
R7DD
R6DD
R5DD
R4DD
R3DD
R2DD
R1DD
R0DD
0×29
DEBOUNCE_DIS 1
0: enabled
0
1: disabled
Debounce disable
C7DD
C6DD
C5DD
C4DD
C3DD
C2DD
C1DD
C0DD
0×2A
DEBOUNCE_DIS 2
0: enabled
0
1: disabled
Debounce disable
N/A
C9DD
C8DD
0×2B
DEBOUNCE_DIS 3
0: enabled
N/A
0
1: disabled
GPIO pullup
R7PD
R6PD
R5PD
R4PD
R3PD
R2PD
R1PD
R0PD
0×2C
GPIO_PULL1
0: pullup enabled
0
1: pullup disabled
GPIO pullup
C7PD
C6PD
C5PD
C4PD
C3PD
C2PD
C1PD
C0PD
0×2D
GPIO_PULL2
0: pullup enabled
0
1: pullup disabled
GPIO pullup
N/A
C9PD
C8PD
0×2E
GPIO_PULL3
0: pullup enabled
0
1: pullup disabled
0×2F
Reserved
Configuration Register (Address 0×01)
BIT
NAME
DESCRIPTION
Auto-increment for read and write operations
7
AI
0 = disabled
1 = enabled
GPI event mode configuration
6
GPI_E_CFG
0 = GPI events are tracked when keypad is locked
1 = GPI events are not tracked when keypad is locked
Overflow mode
5
OVR_FLOW_M
0 = disabled; overflow data is lost
1 = enabled.
Overflow data shifts with last event pushing first event out interrupt configuration.
0 = processor interrupt remains asserted (or low) if host tries to clear interrupt while there is
4
INT_CFG
still a pending key press, key release or GPI interrupt
1 = processor interrupt is deasserted for 50 ms and reassert with pending interrupts
Overflow interrupt enable
3
OVR_FLOW_IEN
0 = disabled
1 = enabled
Keypad lock interrupt enable
2
K_LCK_IEN
0 = disabled
1 = enabled
GPI interrupt enable to host processor
0 = disabled
1
GPI_IEN
1 = enabled
Can be used to mask interrupts
Copyright 2010, Texas Instruments Incorporated
15
Product Folder Link(s): TCA8418E
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| TCA8418EYFPR | 制造商:Texas Instruments 功能描述:IC I2C CONTROLLED KEYPAD SCAN 3.6V 25 |
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