C8051F709-GQR Silicon Labs, C8051F709-GQR Datasheet - Page 191

• Manufacturer Part Number: C8051F709-GQR
• Description: 8-bit Microcontrollers - MCU 8kB 32B EEPROM Cap Sense
• Manufacturer: Silicon Labs

Specifications of C8051F709-GQR

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

SFR Definition 28.2. XBR1: Port I/O Crossbar Register 1
SFR Address = 0xE2; SFR Page = F
Name WEAKPUD
Reset
Bit
1:0 PCA0ME[1:0] PCA Module I/O Enable Bits.
Type
7
6
5
4
3
2
Bit
WEAKPUD
Unused
XBARE
Name
ECIE
T1E
T0E
R/W
7
0
Port I/O Weak Pullup Disable.
0: Weak Pullups enabled (except for Ports whose I/O are configured for analog
mode).
1: Weak Pullups disabled.
Crossbar Enable.
0: Crossbar disabled.
1: Crossbar enabled.
T1 Enable.
0: T1 unavailable at Port pin.
1: T1 routed to Port pin.
T0 Enable.
0: T0 unavailable at Port pin.
1: T0 routed to Port pin.
PCA0 External Counter Input Enable.
0: ECI unavailable at Port pin.
1: ECI routed to Port pin.
Read = 0b; Write = Don’t Care.
00: All PCA I/O unavailable at Port pins.
01: CEX0 routed to Port pin.
10: CEX0, CEX1 routed to Port pins.
11: CEX0, CEX1, CEX2 routed to Port pins.
XBARE
R/W
6
0
R/W
T1E
5
0
Rev. 1.0
R/W
T0E
4
0
Function
ECIE
R/W
3
0
C8051F70x/71x
R
2
0
R/W
PCA0ME[1:0]
1
0
R/W
0
0
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