C8051F540-IQR Silicon Labs, C8051F540-IQR Datasheet - Page 267
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:
C8051F540-IQR
Manufacturer:
Silicon Laboratories Inc
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10 000
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SFR Definition 24.5. PCA0L: PCA Counter/Timer Low Byte
SFR Address = 0xF9; SFR Page = 0x00
SFR Definition 24.6. PCA0H: PCA Counter/Timer High Byte
SFR Address = 0xFA; SFR Page = 0x00
Note: When the WDTE bit is set to 1, the PCA0L register cannot be modified by software. To change the contents of
Note: When the WDTE bit is set to 1, the PCA0H register cannot be modified by software. To change the contents of
Name
Reset
Name
Reset
Bit
7:0
Bit
7:0 PCA0[15:8] PCA Counter/Timer High Byte.
Type
Type
Bit
Bit
the PCA0L register, the Watchdog Timer must first be disabled.
the PCA0H register, the Watchdog Timer must first be disabled.
PCA0[7:0] PCA Counter/Timer Low Byte.
Name
Name
R/W
R/W
7
0
7
0
The PCA0L register holds the low byte (LSB) of the 16-bit PCA Counter/Timer.
The PCA0H register holds the high byte (MSB) of the 16-bit PCA Counter/Timer.
Reads of this register will read the contents of a “snapshot” register, whose contents
are updated only when the contents of PCA0L are read (see Section 24.1).
R/W
R/W
6
0
6
0
R/W
R/W
5
0
5
0
R/W
R/W
Rev. 1.1
4
0
4
0
PCA0[15:8]
PCA0[7:0]
Function
Function
R/W
R/W
3
0
3
0
R/W
R/W
2
0
2
0
C8051F54x
R/W
R/W
1
0
1
0
R/W
R/W
0
0
0
0
267
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