CP2400DK Silicon Laboratories Inc, CP2400DK Datasheet - Page 91

• Manufacturer Part Number: CP2400DK
• Description: KIT EVAL SPI LCD DRIVER CP2400
• Manufacturer: Silicon Laboratories Inc

Specifications of CP2400DK

• Main Purpose: LCD Development
• Embedded: Yes
• Utilized Ic / Part: CP2400
• Primary Attributes: I²C, SMBus Interfaces
• Secondary Attributes: Up to 128 segments
• Product: Microcontroller Modules
• Core Processor: C8051F930
• Clock Speed: 20 MHz
• Interface Type: SPI
• Timers: 2
• Operating Supply Voltage: 1.8 V to 3.6 V
• Cpu Core: C8051F930
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 336-1858; 336-1858

12.6. Blinking LCD Segments
The LCD driver supports blinking LCD applications such as clock applications where the “colon” separator toggles
on and off once per second. If the LCD is only displaying the hours and minutes, then the device only needs to
wake up once per minute to update the display. The once per second blinking is automatically handled by the
CP2400/1/2/3.
The LCD0BLINK register can be used to enable blinking on any LCD segment connected to the LCD0 or LCD1
segment pin. In static mode, a maximum of 2 segments can blink. In 4-mux mode, a maximum of 8 segments can
blink. The LCD0BLINK mask register targets the same LCD segments as the ULPMEM00 register. If an
LCD0BLINK bit corresponding to an LCD segment is set to 1, then that segment will toggle at the frequency set by
the LCD0TOGR register without any software intervention.
SFR Definition 12.8. LCD0BLINK: LCD0 Blink Mask
Address = 0x80
Name
Reset
Type
7:0
Bit
Bit
LCD0BLINK[7:0]
R/W
7
0
Name
R/W
6
0
LCD0 Blink Mask.
Each bit maps to a specific LCD segment connected to the LCD0 and LCD1 segment
pins. A value of 1 indicates that the segment is blinking. A value of 0 indicates that the
segment is not blinking. This bit to segment mapping is the same as the ULPMEM00
register.
R/W
5
0
Rev. 1.0
R/W
LCD0BLINK[7:0]
4
0
R/W
Function
3
0
R/W
2
0
CP2400/1/2/3
R/W
1
0
R/W
0
0
91