TMP93xy20FG Toshiba, TMP93xy20FG Datasheet - Page 218

• Manufacturer Part Number: TMP93xy20FG
• Manufacturer: Toshiba

Specifications of TMP93xy20FG

• Package: LQFP144
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): M/P
• Rom Combinations: 64
• Ram Combinations: 2
• Architecture: 16-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 2
• I2c/sio Bus Channels: 1
• (s)dram Controller: -
• Adc 10-bit Channel: 8
• Da Converter: -
• Timer 8-bit Channel: 4
• Timer 16-bit Channel: 4
• Pwm 8-bit Channels: -
• Pwm 16-bit Channels: -
• Cs/wait Controller: -
• Dual Clock: Y
• Number Of I/o Ports: 88
• Power Supply Voltage(v): 4.5 to 5.5

3.14.4
LCD Driver Control Method
(1) Initialization
(2) Storing of display data
It is stored by the load instruction in the display data area.
A flow chart of an initialization is shown in Figure 3.14.7.
Usually, the display data is provided as a constant data in a program memory (ROM).
Example:
Example 1:
Figure 3.14.8 An Example of Connecting of COM and SEG Pins
Figure 3.14.7 Initialization of the LCD Driver
When 40 segments × 4 commons and 1/4 duty LCD is operated at the frame frequency fs/2
LD
SET
LD
LD
SET
To display the BCD data by the 1/4 duty LCD which is connected to the COM and SEG pins as
[Hz] and the boosting frequency fs/2
Figure 3.14.8, the display data is shown in Table 3.14.4.
(LCDCR), 00110000B
6, (CHPCR)
(P9FC), 0FFH
(PAFC), 0FFH
7, (CHPCR)
Sets a LCD driving method<DUTY1:0>
Initialization of a display data area
Sets a boosting frequency<SLFR1:0>
Sets a frame frequency<SLF1:0>
SEG0
SEG1
Display enable<EDSP>
Sets P9 and PA part
93CS20-216
(Releases blanking)
Start boosting
3
[Hz].
;
;
;
;
;
Sets a LCD driving method, a frame frequency, and
a boosting frequency.
Starts boosting.
Sets P9 and PA port as segment outputs.
Sets an initial value of a display data. Waits for
boosting.
Display enable.
COM0
COM1
COM2
COM3
TMP93CS20
2004-02-10
9