C8051F987-GMR Silicon Labs, C8051F987-GMR Datasheet - Page 315

• Manufacturer Part Number: C8051F987-GMR
• Description: 8-bit Microcontrollers - MCU 8kB 512B RAM
• Manufacturer: Silicon Labs

Specifications of C8051F987-GMR

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

SFR Definition 26.5. PCA0L: PCA Counter/Timer Low Byte
SFR Page = 0x0; SFR Address = 0xF9
SFR Definition 26.6. PCA0H: PCA Counter/Timer High Byte
SFR Page = 0x0; SFR Address = 0xFA
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 26.1).
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]
C8051F99x-C8051F98x
Function
Function
R/W
R/W
3
0
3
0
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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