TMP91xy25FG Toshiba, TMP91xy25FG Datasheet - Page 157

• Manufacturer Part Number: TMP91xy25FG
• Manufacturer: Toshiba

Specifications of TMP91xy25FG

• Package: LQFP100
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): Romless
• Rom Combinations: Romless
• Ram Combinations: Ramless
• Architecture: 16-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 2
• I2c/sio Bus Channels: -
• (s)dram Controller: -
• Adc 10-bit Channel: 4
• Da Converter: -
• Timer 8-bit Channel: 4
• Timer 16-bit Channel: -
• Pwm 8-bit Channels: -
• Pwm 16-bit Channels: -
• Cs/wait Controller: 4
• Dual Clock: Y
• Number Of I/o Ports: 49
• Power Supply Voltage(v): 3.0 to 3.6

PB5/INT2
3.10 Touch Screen Interface (TSI)
VREFH
VREFL
3.10.1
(PX)
AVCC
AVSS
(MY)
(MX)
(PY)
PB6
P83
P82
and using an internal AD converter.
The TMP91C025 has an interface for 4-terminal resistor network touch-screen.
This interface supports two procedures: an X/Y position measurement and touch detection.
Each procedure can be performed by setting the TSI control register (TSICR0 and TSICR1)
X+
Touch Screen Interface Module Internal/External Connection
screen
Touch
Y-
Y+
PXD (typ.200 kΩ)
Figure 3.10.2 Internal Block Diagram of TSI (B)
Figure 3.10.1 External Connection of TSI (A)
SPY
External capacitors
SMX
X-
SPX
91C025-155
SMY
MY
MX
PY
PX
Dec.
TMP91C025FG
INT2
PXEN
PYEN
MXEN
MYEN
TSI7
AN3
AN2
AVCC
AVSS
VREFH
VREFL
Touch screen control
AD Converter
PTST
INT2
TMP91C025
2007-02-28