CP2400AB Silicon Laboratories Inc, CP2400AB Datasheet - Page 32
CP2400AB
Manufacturer Part Number
CP2400AB
Description
BOARD EVAL SPI LCD DRIVER CP2400
Manufacturer
Silicon Laboratories Inc
Specifications of CP2400AB
Main Purpose
LCD Development
Embedded
No
Utilized Ic / Part
CP2400
Primary Attributes
I²C, SMBus Interfaces
Secondary Attributes
Up to 128 segments
Product
Microcontroller Accessories
Core Processor
CP2400
Clock Speed
20 MHz
Interface Type
SPI
Timers
2
Operating Supply Voltage
1.8 V to 3.6 V
Cpu Core
CP2400
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
336-1857
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CP2400/1/2/3
5.
CP2400/1/2/3 devices include a 20 MHz internal oscillator that is selected as the system clock source upon reset.
Additional clocking options include an external CMOS clock input, the internal oscillator divided by 2, 4, or 8, and
the SmaRTClock real time clock oscillator. The system clock source is selected using the CLKSEL register. The
system clock selection may always be overridden by an external CMOS clock if the CLKOVR bit (MSCN.2) is set.
SFR Definition 5.1. CLKSL: Clock Select
Internal Register Address = 0x32
32
Name
Reset
Type
Bit
7:3
2:0
Bit
Clocking Options
CM O S
Clock
Unused
CLKSL
Name
R/W
32.768 kHz
7
0
XTAL1
XTAL2
CLK
Read = 00000. Write = Don’t Care.
System Clock Select.
Selects the oscillator to be used as system clock source.
000: Internal oscillator divided by 1.
001: Internal oscillator divided by 2.
010: Internal oscillator divided by 4.
011: Internal oscillator divided by 8.
100: CMOS clock (CLK pin).
101: SmaRTClock oscillator.
All other values reserved.
R/W
6
0
20 M Hz Internal
Sm aRTClock
O scillator
O scillator
R/W
Figure 5.1. Clocking Options
5
0
Rev. 1.0
R/W
8
4
2
4
0
Function
R/W
3
0
CLKSEL
2
0
CM O S
Clock
M SC N
CLKSL
R/W
1
0
SYSCLK
0
0
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