C8051F581-IMR Silicon Labs, C8051F581-IMR Datasheet - Page 329

• Manufacturer Part Number: C8051F581-IMR
• Description: 8-bit Microcontrollers - MCU 50MIPS 128kB 8kB SPI
• Manufacturer: Silicon Labs

Specifications of C8051F581-IMR

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

SFR Definition 28.5. PCA0L: PCA0 Counter/Timer Low Byte
SFR Address = 0xF9; SFR Page = 0x00
SFR Definition 28.6. PCA0H: PCA0 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] PCA0 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] PCA0 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 PCA0 Counter/Timer.
The PCA0H register holds the high byte (MSB) of the 16-bit PCA0 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 28.1).
R/W
R/W
6
0
6
0
R/W
R/W
5
0
5
0
R/W
R/W
Rev. 1.2
4
0
4
0
PCA0[15:8]
PCA0[7:0]
Function
Function
R/W
R/W
3
0
3
0
C8051F58x/F59x
R/W
R/W
2
0
2
0
R/W
R/W
1
0
1
0
R/W
R/W
0
0
0
0
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