GMS30C7201 Datasheet, PDF (301/352 Pages) Hynix Semiconductor – 60MHz operation frequency Low power consumption

Slow AMBA Peripherals
Touch Panel Control Register (AICTCTR)
The AIC touch panel control register is used to control touch panel sampling operations. If TPC
bit is set to 1, the touch panel data sampling starts (enabled). If TPC is reset to 0, the sampling
operation stops (disabled). The AIC unit has eight sampling modes for touch panel data
acquisition. The sampling rate is selected by the TCLK bits and SCLK of AICSCTR.
For eight sample rates, TCLK bits have to be set between 00–11, and SCLK of AICSCTR has
to be set between 0–1 as shown in Table 13-57: AICTCTR bit functions. The TPC bit should
be cleared at the beginning of the Interrupt Service Routine to disable the touch panel.
Bit
Initial
Name
Function
7
0
TPC
Touch panel sampling control bit:
0 - disable
1 - enable
6
0
TMSK
Touch panel interrupt mask bit:
0 - mask
1 - unmask
5–2
-
-
Reserved bits
1–0
00
TCLK
Touch panel data sampling rate selection.
When SCLK = 0:
00 - approx. 400 samples/sec
01 - approx. 200 samples/sec
10 - approx. 100 samples/sec
11 - approx. 50 samples/sec
When SCLK = 1:
00 - approx. 550 samples/sec
01 - approx. 275 samples/sec
10 - approx. 138 samples/sec
11 - approx. 69 samples/sec
Table 13-57: AICTCTR bit functions
Battery Control Register (AICBCTR)
The AIC battery check control register is used to control the battery check operations. If the
MBC bit is set to 1, the battery check operation is enabled for the main battery. If MBC is reset
to 0, the check operation is stopped (disabled). The BBC bit performs a similar function for the
backup battery. When a battery check operation is needed, the enable bit (MBC,BBC) must first
be reset to 0 and then set to 1(start).
Bit
Initial
Name
Function
7
0
MBC
Main battery check control bit:
0 - disable
1 - enable
6
0
MMSK
Main battery interrupt mask bit:
0 - mask
1 - unmask
5
0
BBC
Backup battery check control bit:
0 - disable
1 - enable
Table 13-58: AICBCTR bit functions
GMS30C7201 Data Sheet
13-73