TMP92xy21FG Toshiba, TMP92xy21FG Datasheet - Page 426

• Manufacturer Part Number: TMP92xy21FG
• Manufacturer: Toshiba

Specifications of TMP92xy21FG

• Package: LQFP144
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): Romless
• Rom Combinations: Romless
• Ram Combinations: 16
• Architecture: 32-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 2
• I2c/sio Bus Channels: -
• (s)dram Controller: 1
• Adc 10-bit Channel: 4
• Da Converter: -
• Timer 8-bit Channel: 4
• Timer 16-bit Channel: 1
• Pwm 8-bit Channels: -
• Pwm 16-bit Channels: -
• Cs/wait Controller: 4
• Dual Clock: Y
• Number Of I/o Ports: 82
• Power Supply Voltage(v): 3.0 to 3.6

3.19 Touch Screen Interface (TSI)
P96/INT4
PG3/AN3
PG2/AN2
VREFH
VREFL
3.19.1
AVCC
AVSS
(MY)
(MX)
(PY)
(PX)
P97
using an internal AD converter.
The TMP92CH21 has an interface for a 4-terminal resistor network touch screen.
This interface supports two procedures: an X/Y position measurement and touch detection.
Each procedure is executed by setting the TSI control register (TSICR0 and TSICR1) and
Touch Screen Interface Module Internal/External Connection
X+
PXD (typ.200 kΩ)
screen
Touch
Y−
Y+
Figure 3.19.2 Internal Block Diagram of TSI
SPY
SMX
Figure 3.19.1 External Connection of TSI
External capacitors
X−
92CH21-424
SPX
SMY
MY
MX
PY
PX
TMP92CH21
Dec.
PXEN
PYEN
MXEN
MYEN
TSI7
AN3
AN2
AVCC
AVSS
VREFH
VREFL
Touch screen control
AD converter
PTST
INT4
TMP92CH21
2009-06-19