C8051F987-GMR Silicon Labs, C8051F987-GMR Datasheet - Page 221
C8051F987-GMR
Manufacturer Part Number
C8051F987-GMR
Description
8-bit Microcontrollers - MCU 8kB 512B RAM
Manufacturer
Silicon Labs
Datasheet
1.C8051F986-GUR.pdf
(322 pages)
Specifications of C8051F987-GMR
Rohs
yes
Core
8051
Processor Series
C8051
Data Bus Width
8 bit
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SFR Definition 21.2. XBR1: Port I/O Crossbar Register 1
SFR Page = 0x0; SFR Address = 0xE2
Name
Reset
Type
7:6
2:0
Bit
Bit
5
4
3
PCA0ME PCA0 Module I/O Enable.
Unused
Name
ECIE
R/W
T1E
T0E
7
0
Read = 00b; Write = Don’t Care.
Timer1 Input Enable.
0: T1 input unavailable at Port pin.
1: T1 input routed to Port pin.
Timer0 Input Enable.
0: T0 input unavailable at Port pin.
1: T0 input routed to Port pin.
PCA0 External Counter Input (ECI) Enable.
0: PCA0 external counter input unavailable at Port pin.
1: PCA0 external counter input routed to Port pin.
000: All PCA0 I/O unavailable at Port pin.
001: CEX0 routed to Port pin.
010: CEX0, CEX1 routed to Port pins.
011: CEX0, CEX1, CEX2 routed to Port pins.
100: Reserved.
101: Reserved.
110: Reserved.
111: Reserved.
R/W
6
0
R/W
T1E
5
0
T0E
R/W
Rev. 1.1
4
0
C8051F99x-C8051F98x
Function
ECIE
R/W
3
0
R/W
2
0
PCA0ME[2:0]
R/W
1
0
R/W
0
0
221
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