參數(shù)資料
型號： TSC2301PAG
廠商： Texas Instruments, Inc.
英文描述： SIGN, EYE PROTECTION MUST BE WORN; RoHS Compliant: NA
中文描述： 可編程觸摸屏控制器，立體聲編解碼器
文件頁數(shù)： 36/92頁
文件大?。?/td> 1161K
代理商： TSC2301PAG
www.ti.com
Keypad Mask Register (Page 1, Address 10H)
Secondary Configuration Register (Page 1, Address 06H):
TSC2301
SLAS371D–SEPTEMBER 2002–REVISED AUGUST 2004
The Keypad Mask register is formatted as follows:
Bit 15
MSB
M15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
LSB
M0
M14
M13
M12
M11
M10
M9
M8
M7
M6
M5
M4
M3
M2
M1
This is the same format as used in the keypad data register (Page 0, Address 04H). Each bit in these registers
represents one key on the keypad. In the mask register, if a bit is set (1), then that key is not detected in keypad
scans. Pressing that key on the keypad also does not cause a KBIRQ, if the bit is set. If the bit is cleared (0), the
corresponding key is detected when pressed. A 16-key keypad is mapped into the keypad mask (and keypad
data) register as shown in
Table 23
. The default value for this register is 0000H, detecting all key presses.
Table 23. Keypad to Key Bit Mapping
C1
K0
K4
K8
K12
C2
K1
K5
K9
K13
C3
K2
K6
K10
K14
C4
K3
K7
K11
K15
R1
R2
R3
R4
The result of a keypad scan appears in the keypad data register. Each bit is set in this register, corresponding to
the key(s) actually pressed. For example, if only key 1 was pressed on a particular scan, the data in the register
would read as 0x0002; however, if keys 6, 8, and 13 were all pressed simultaneously on that scan, the data
would read as 0x2140.
Multiple keys can be pressed simultaneously and are generally decoded correctly by the keypad scan circuitry.
However, keys that land on three corners of a rectangle can cause a false reading of a key on the fourth corner
of the rectangle. For example, if keys 0, 3, and 11 were pressed simultaneously, the KEY0, KEY3, and KEY11
bits are set, but the KEY8 bit is also set. Thus, when considering using multiple-key combinations in an
application, try to avoid combinations that put three keys on the corners of a rectangle.
This register allows the user to read the status of the DAV pin through the SPI interface. It controls the behavior
of the KBIRQ signal, as well as provides control of the audio codec PLL.
Bit 15
MSB
SDAV/K
BC1
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
LSB
N0
KBC0
PLLO
PCTE
PDC3
PDC2
PDC1
PDC0
A3
A2
A1
A0
N3
N2
N1
36
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TSC2302IRGZG4 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/20-Bit Stereo Audio Codec RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
TSC2302IRGZR 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/20-Bit Stereo Audio Codec RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
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