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參數資料
| 型號： | TSC2300IPAG |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | GREEN, PLASTIC, TQFP-64 |
| 文件頁數： | 20/81頁 |
| 文件大小： | 1039K |
| 代理商： | TSC2300IPAG |
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TSC2300
SLAS372 — NOVEMBER 2002
Bits [13:10] — AD3 - AD0
A/D Function Select bits. These bits control which input is to be converted, and what mode the converter is placed in.
These bits are the same whether reading or writing. See Table 8 for a complete listing of how these bits are used.
Table 8. A/D Function Select
A/D3
A/D2 A/D1 A/D0
FUNCTION
0
Invalid. No registers are updated. This is the default state after a reset.
0
1
Touch screen scan function: X and Y coordinates converted and the results returned to X and Y data
registers. Scan continues until either the pen is lifted or a stop bit is sent.
0
1
0
Touch screen scan function: X, Y, Z1 and Z2 coordinates converted and the results returned to X, Y, Z1 and
Z2 data registers. Scan continues until either the pen is lifted or a stop bit is sent.
0
1
Touch screen scan function: X coordinate converted and the results returned to X data register.
0
1
0
Touch screen scan function: Y coordinate converted and the results returned to Y data register.
0
1
0
1
Touch screen scan function: Z1 and Z2 coordinates converted and the results returned to Z1 and Z2 data
registers.
0
1
0
Battery Input 1 converted and the results returned to the BAT1 data register.
0
1
Battery Input 2 converted and the results returned to the BAT2 data register.
1
0
Auxiliary Input 1 converted and the results returned to the AUX1 data register.
1
0
1
Auxiliary Input 2 converted and the results returned to the AUX2 data register.
1
0
1
0
A temperature measurement is made and the results returned to the temperature measurement 1 data
register.
1
0
1
Port scan function: Battery Input 1, Battery Input 2, Auxiliary Input 1, and Auxiliary Input 2 measurements are
made and the results returned to the appropriate data registers
1
0
A differential temperature measurement is made and the results returned to the temperature measurement 2
data register.
1
0
1
Turn on X+, X- drivers
1
0
Turn on Y+, Y- drivers
1
Turn on Y+, X- drivers
Bits[9:8] — RS1, RS0
Resolution Control. The A/D converter resolution is specified with these bits. SeeTable 9 for a description of these bits.
These bits are the same whether reading or writing.
Table 9. A/D Converter Resolution Control
RS1
RS0
FUNCTION
0
12-bit resolution. Power up and reset default.
0
1
8-bit resolution
1
0
10-bit resolution
1
12-bit resolution
Bits[7:6] — AV1, AV0
Converter Averaging Control. These two bits (see Table 10) allow you to specify the number of averages the converter
performs. Note that when averaging is used, the STS/STP bit and the DAV output indicates that the converter is busy
until all conversions necessary for the averaging are complete. The default state for these bits is 00, selecting no
averaging. These bits are the same whether reading or writing.
Table 10. A/D Conversion Averaging Control
AV1
AV0
FUNCTION
0
None (one conversion) (default)
27
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