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| 型號： | TSC2301IPAGRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | GREEN, PLASTIC, TQFP-64 |
| 文件頁數(shù)： | 29/95頁 |
| 文件大小： | 1322K |
| 代理商： | TSC2301IPAGRG4 |
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TSC2301 KEYPAD REGISTERS
Keypad Control Register (Page 1, Address 01H)
TSC2301
SLAS371D – SEPTEMBER 2002 – REVISED AUGUST 2004
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.
The Keypad Control register is formatted as follows:
Bit 15
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
MSB
LSB
STC
SCS
DB2
DB1
DB0
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
Description
0
No keys are pressed (default)
1
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
Value
Description
Read
0
Scanner or de-bouncer busy
Read
1
Scanner not busy (default)
Write
0
Normal operation
Write
1
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
KBDB1
KBDB0
Function
0
De-bounce: 2 ms (default)
0
1
De-bounce: 10 ms
0
1
0
De-bounce: 20 ms
0
1
De-bounce: 50 ms
1
0
De-bounce: 60 ms
1
0
1
De-bounce: 80 ms
1
0
De-bounce: 100 ms
1
De-bounce: 120 ms
35
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| TSC2301IZQZ | 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 |
| TSC2301IZQZR | 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 |
| TSC2301PAG | 制造商:TI 制造商全稱:Texas Instruments 功能描述:PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC |
| TSC2301PAGR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC |
| TSC2302 | 制造商:BB 制造商全稱:BB 功能描述:PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC |
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