C8051F509-IMR Silicon Labs, C8051F509-IMR Datasheet - Page 190

• Manufacturer Part Number: C8051F509-IMR
• Description: 8-bit Microcontrollers - MCU 50 MIPS 64 kB 4 kB SPI UART I2C
• Manufacturer: Silicon Labs

Specifications of C8051F509-IMR

• Rohs: yes
• Core: 8051
• Data Bus Width: 8 bit
• Processor Series: C8051

C8051F50x/F51x
SFR Definition 20.10. P3MASK: Port 3 Mask Register
SFR Address = 0xAF; SFR Page = 0x00
SFR Definition 20.11. P3MAT: Port 3 Match Register
SFR Address = 0xAE; SFR Page = 0x00
190
Note: P3.1–P3.7 are only available on the 48-pin and 40-pin packages
Note: P3.1–P3.7 are only available on the 48-pin and 40-pin packages
Name
Reset
Name
Reset
7:0
7:0
Bit
Bit
Type
Type
Bit
Bit
P3MASK[7:0]
P3MAT[7:0]
Name
Name
7
0
7
1
Port 1 Mask Value.
Selects P3 pins to be compared to the corresponding bits in P3MAT.
0: P3.n pin logic value is ignored and cannot cause a Port Mismatch event.
1: P3.n pin logic value is compared to P3MAT.n.
Port 3 Match Value.
Match comparison value used on Port 3 for bits in P3MAT which are set to 1.
0: P3.n pin logic value is compared with logic LOW.
1: P3.n pin logic value is compared with logic HIGH.
6
0
6
1
5
0
5
1
Rev. 1.2
4
P3MASK[7:0]
0
4
1
P3MAT[7:0]
R/W
R/W
Function
Function
3
0
3
1
2
0
2
1
1
0
1
1
0
0
0
1