CP2120-GM Silicon Laboratories Inc, CP2120-GM Datasheet - Page 20

• Manufacturer Part Number: CP2120-GM
• Description: IC I/O EXPANDER I2C/SPI 8B 20QFN
• Manufacturer: Silicon Laboratories Inc
• Type: SPI to I2C Bridger

Specifications of CP2120-GM

• Package / Case: 20-QFN
• Interface: I²C, SPI
• Number Of I /o: 8
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 336-1324

CP2120
20
Internal Register Address:
Internal Register Address:
PCIO7.1
GPIO7
R/W
Bit 7
R/W
Bit 7
Internal Register Definition 8. IOCONFIG2: Port I/O Configuration 2
Reset Value:
Reset Value:
Bit 7-6:
Bit 5-4:
Bit 3-2:
Bit 1-0:
These bits select the port state for GPIO pins 7 through 4.
Bit 7-0:
PCIO7.0
GPIO6
Internal Register Definition 9. IOSTATE: Port I/O State
Bit 6
Bit 6
R/W
R/W
Write - Output appears on output pins.
0: GPIOx set to logic low output.
1: GPIO set to logic high output.
Read - Reads port state.
0: GPIOx is logic low.
1: GPIOx is logic high.
0x07
0x00
PCIO7.1-PCIO7.0: Port Configuration for GPIO Pin 7
PCIO6.1-PCIO6.0: Port Configuration for GPIO Pin 6
PCIO5.1-PCIO5.0: Port Configuration for GPIO Pin 5
PCIO4.1-PCIO4.0: Port Configuration for GPIO Pin 4
0x01
0x00
GPIO7-0: General Purpose Input/Output State
PCIO6.1
GPIO5
PCIOx.1
R/W
Bit 5
R/W
Bit 5
0
0
1
1
PCIO6.0
GPIO4
PCIOx.0
R/W
Bit 4
R/W
Bit 4
0
1
0
1
Rev. 0.4
PCIO5.1
Open Drain Output
Input Only
Push-Pull Output
Input Only
GPIO3
GPIO Pin x Mode
R/W
R/W
Bit3
Bit3
PCIO5.0
GPIO2
R/W
Bit 2
R/W
Bit 2
PCIO4.1
GPIO1
R/W
Bit 1
R/W
Bit 1
PCIO4.0
GPIO0
Bit 0
Bit 0
R/W
R/W