TMP91xy40FG Toshiba, TMP91xy40FG Datasheet - Page 140

• Manufacturer Part Number: TMP91xy40FG
• Manufacturer: Toshiba

Specifications of TMP91xy40FG

• Package: LQFP100
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): M/F
• Rom Combinations: 128
• Ram Combinations: 4
• Architecture: 16-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 4
• I2c/sio Bus Channels: -
• (s)dram Controller: -
• Adc 10-bit Channel: 4
• Da Converter: -
• Timer 8-bit Channel: 4
• Timer 16-bit Channel: 3
• Pwm 8-bit Channels: -
• Pwm 16-bit Channels: -
• Cs/wait Controller: -
• Dual Clock: Y
• Number Of I/o Ports: 61
• Power Supply Voltage(v): 2.2 to 3.6

(1) Display data setting
3.11.3 LCD Display Operation
pins. The LCD light is turned on when display data is 1 and turned off when display data is 0.
to be used in the display data area also varies.
by hardware. The LCD driver generates segment and common signals according to the received
display data and the specified drive method. Therefore, it is only required to program the contents
of the display data area to change display patterns. After display data is written to the LCDREG0
to LCDREG19, a wait period of six LCDCLK pulses is needed before new display data can be
written. If new display data is written without waiting for this interval, the previous display data
may be overwritten.
Figure 3.11.7 shows the correspondence between the display data area and the SEG and COM
The number of pixels that can be driven varies with the LCD drive method, so the number of bits
Note: The contents of the display data area are initialized to 00H after reset.
The display data stored in the display data area is automatically read and sent to the LCD driver
LCDREG10
LCDREG11
LCDREG12
LCDREG13
LCDREG14
LCDREG15
LCDREG16
LCDREG17
LCDREG18
LCDREG19
LCDREG0
LCDREG1
LCDREG2
LCDREG3
LCDREG4
LCDREG5
LCDREG6
LCDREG7
LCDREG8
LCDREG9
Note: “−“ indicates bits that are not used for storing display data.
1/4 duty
1/3 duty
1/2 duty
Static
Drive Method
03E0H
03E1H
03E2H
03E3H
03E4H
03E5H
03E6H
03E7H
03E8H
03E9H
03F0H
03F1H
03F2H
03F3H
03F4H
03F5H
03F6H
03F7H
03F8H
03F9H
Address
Table 3.11.4 Bits Used for Storing Display Data
Figure 3.11.7 LCD Display Data
COM3 COM2 COM1 COM0 COM3 COM2 COM1 COM0
Bit 7
Bits 7/3
COM3
−
−
−
91CW40-138
Bit 6
SEG1
SEG3
SEG5
SEG7
SEG9
SEG11
SEG13
SEG15
SEG17
SEG19
SEG21
SEG23
SEG25
SEG27
SEG29
SEG31
SEG33
SEG35
SEG37
SEG39
Bits 6/2
Bit 5
COM2
COM2
−
−
Bit 4
Bits 5/1
COM1
COM1
COM1
Bit 3
−
Bit 2
SEG0
SEG2
SEG4
SEG6
SEG8
SEG10
SEG12
SEG14
SEG16
SEG18
SEG20
SEG22
SEG24
SEG26
SEG28
SEG30
SEG32
SEG34
SEG36
SEG38
Bits 4/0
COM0
COM0
COM0
COM0
Bit 1
Bit 0
TMP91CW40
Initial value: 00H
2008-09-19