CP2401-GQ Silicon Laboratories Inc, CP2401-GQ Datasheet - Page 63

• Manufacturer Part Number: CP2401-GQ
• Description: IC LCD DRIVER 48TQFP
• Manufacturer: Silicon Laboratories Inc

Specifications of CP2401-GQ

• Package / Case: 48-TQFP, 48-VQFP
• Display Type: LCD
• Configuration: 128 Segment
• Interface: I²C, SMBus
• Current - Supply: 620µA
• Voltage - Supply: 1.8 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Data Ram Size: 256 B
• Interface Type: I2C, SMBus
• Maximum Clock Frequency: 25 MHz
• Number Of Timers: 2
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Digits Or Characters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1860

10.3. Active Mode Port Match
Port match functionality allows system events to be triggered by a logic value change on a GPIO pin. A software
controlled value stored in the PnMATCH registers specifies the expected or normal logic values of the associated
Port. A Port mismatch event occurs if the logic levels of the Port’s input pins no longer match the software
controlled value. This allows software to be notified if a certain change or pattern occurs on an input pin.
The PnMSK registers can be used to individually select which pins should be compared against the PnMATCH
registers. A Port mismatch event is generated if (PnIN & PnMSK) does not equal (PnMATCH & PnMSK) for all
Ports.
A Port mismatch event may be used to generate an interrupt. See “7. Interrupt Sources” on page 40 for more
details on handling an interrupt.
SFR Definition 10.1. PMATCHST: Port Match Status Register
Address = 0xD0
Name
Reset
Type
7:5
Bit
Bit
4
3
2
1
0
Unused
R/W
Name
P4M
P3M
P2M
P1M
P0M
7
0
Read = 000b. Write = Don’t Care.
Port 4 Match.
0: No port mismatch events have been detected on P4.
1: A port mismatch event is present on P4.
Port 3 Match.
0: No port mismatch events have been detected on P3.
1: A port mismatch event is present on P3.
Port 2 Match.
0: No port mismatch events have been detected on P2.
1: A port mismatch event is present on P2.
Port 1 Match.
0: No port mismatch events have been detected on P1.
1: A port mismatch event is present on P1.
Port 0 Match.
0: No port mismatch events have been detected on P0.
1: A port mismatch event is present on P0.
R/W
6
0
R/W
5
0
Rev. 1.0
P4M
R/W
4
0
Function
P3M
R/W
3
0
P2M
R/W
2
0
CP2400/1/2/3
P1M
R/W
1
0
P0M
R/W
0
0
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