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參數(shù)資料
| 型號： | TSC2301IGQZ |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | Codec |
| 英文描述： | PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC |
| 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)： | 35/92頁 |
| 文件大?。?/td> | 1161K |
| 代理商： | TSC2301IGQZ |
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TSC2301 KEYPAD REGISTERS
The keypad scanner hardware in the TSC2301 is controlled by two registers: the keypad control register and the
keypad mask register. The keypad control register controls general keypad functions such as scanning and
de-bouncing, while the keypad mask register allows you to mask certain keys from being detected at all.
Keypad Control Register (Page 1, Address 01H)
TSC2301
SLAS371D–SEPTEMBER 2002–REVISED AUGUST 2004
The Keypad Control register is formatted as follows:
Bit 15
MSB
STC
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
X
SCS
DB2
DB1
DB0
X
X
X
X
X
X
X
X
X
X
Bit 15 — STC
Keypad Status. This bit reflects the operation of the KBIRQ pin, with inverted logic. This bit goes high when a key
is pressed and debounced. The default value for this bit is 0.
Table 20. STC Bit Operation
STC
Value
0
1
Description
No keys are pressed (default)
Key pressed and debounced
Bit 14 — SCS
Keypad Scan Status. When reading, this bit indicates if the scanner or de-bouncer is busy. Writing a 0 to this bit
causes keypad scans to continue until either the key is lifted or the process is stopped. Continuous scans can be
stopped by writing a 1 to this bit. This immediately halts a conversion (even if a key is still down). The default
value for this bit when read is 1.
Table 21. SCS Bit Operation
SCS
Read/Write
Read
Read
Write
Write
Value
0
1
0
1
Description
Scanner or de-bouncer busy
Scanner not busy (default)
Normal operation
Stop scans
Bits [13:11] — KBDB2-KBDB0
Keypad De-bounce Control. These bits set the length of the de-bounce time for the keypad, as shown in
Table 22
. The default setting is a 2-ms de-bounce time (000).
Table 22. Keypad De-Bounce Control
KBDB2
0
0
0
0
1
1
1
1
KBDB1
0
0
1
1
0
0
1
1
KBDB0
0
1
0
1
0
1
0
1
Function
De-bounce: 2 ms (default)
De-bounce: 10 ms
De-bounce: 20 ms
De-bounce: 50 ms
De-bounce: 60 ms
De-bounce: 80 ms
De-bounce: 100 ms
De-bounce: 120 ms
35
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TSC2301IGQZR | 功能描述:觸摸屏轉換器和控制器 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 |
| TSC2301IPAG | 功能描述:觸摸屏轉換器和控制器 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 |
| TSC2301IPAGG4 | 功能描述:觸摸屏轉換器和控制器 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 |
| TSC2301IPAGR | 功能描述:觸摸屏轉換器和控制器 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 |
| TSC2301IPAGRG4 | 功能描述:觸摸屏轉換器和控制器 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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