C8051F540-IQR Silicon Labs, C8051F540-IQR Datasheet - Page 160
C8051F540-IQR
Manufacturer Part Number
C8051F540-IQR
Description
8-bit Microcontrollers - MCU 50 MIPS 16 kB 1 kB LIN 2.1 SPI
Manufacturer
Silicon Labs
Datasheet
1.C8051F546-IMR.pdf
(274 pages)
Specifications of C8051F540-IQR
Rohs
yes
Core
8051
Processor Series
C8051
Data Bus Width
8 bit
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F540-IQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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C8051F54x
SFR Definition 18.10. P3MASK: Port 3 Mask Register
SFR Address = 0xAF; SFR Page = 0x00
SFR Definition 18.11. P3MAT: Port 3 Match Register
SFR Address = 0xAE; SFR Page = 0x00
160
Note: P3.0 is only available on the 32-pin packages.
Note: P3.0 is only available on the 32-pin packages.
Name
Reset
Name
Reset
7:1
7:1
Bit
Bit
Type
Type
0
0
Bit
Bit
P3MASK[7:0]
P3MAT[0]
Unused
Unused
Name
Name
R
R
7
0
0
7
0
1
Read = 0000000b; Write = Don’t Care.
Port 3 Mask Value.
Selects P3.n 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.
Read = 0000000b; Write = Don’t Care.
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.
R
R
6
0
0
6
0
1
R
R
5
0
0
5
0
1
Rev. 1.1
R
R
4
0
0
4
0
1
Function
Function
R
R
3
0
0
3
0
1
R
R
2
0
0
2
0
1
R
1
0
0
R
1
0
1
P3MASK[0]
P3MAT[0]
R/W
R/W
0
0
0
1
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