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XMEGA A [MANUAL]
8077I–AVR–11/2012
13.14 Register Descriptions – Port Configuration
13.14.1 MPCMASK – Multi-pin Configuration Mask register
Bit 7:0 – MPCMASK[7:0]: Multi-pin Configuration Mask
The MPCMASK register enables configuration of several pins of a port at the same time. Writing a one to bit n makes pin
n part of the multi-pin configuration. When one or more bits in the MPCMASK register is set, writing any of the PINnCTRL
registers will update only the PINnCTRL registers matching the mask in the MPCMASK register for that port. The
MPCMASK register is automatically cleared after any PINnCTRL register is written.
13.14.2 VPCTRLA – Virtual Port-map Control register A
Bit 7:4 – VP1MAP: Virtual Port 1 Mapping
These bits decide which ports should be mapped to Virtual Port 1. The registers DIR, OUT, IN, and INTFLAGS will be
mapped. Accessing the virtual port registers is equal to accessing the actual port registers. See Table 13-7 on page 146
for configuration.
Bit 3:0 – VP0MAP: Virtual Port 0 Mapping
These bits decide which ports should be mapped to Virtual Port 0. The registers DIR, OUT, IN, and INTFLAGS will be
mapped. Accessing the virtual port registers is equal to accessing the actual port registers. See Table 13-7 on page 146
for configuration.
13.14.3 VPCTRLB – Virtual Port-map Control register B
Bit 7:4 – VP3MAP: Virtual Port 3 Mapping
These bits decide which ports should be mapped to Virtual Port 3. The registers DIR, OUT, IN, and INTFLAGS will be
mapped. Accessing the virtual port registers is equal to accessing the actual port registers. See Table 13-7 on page 146
for configuration.
Bit 3:0 – VP2MAP: Virtual Port 2 Mapping
These bits decide which ports should be mapped to Virtual Port 2. The registers DIR, OUT, IN, and INTFLAGS will be
mapped. Accessing the virtual port registers is equal to accessing the actual port registers. See Table 13-7 on page 146
for configuration.
Bit
7
6
5
432
10
+0x00
MPCMASK[7:0]
Read/Write
R/W
Initial Value
0
Bit
7654
3210
+0x02
VP1MAP[3:0]
VP0MAP[3:0]
Read/Write
R/W
Initial Value
0000
Bit
7
6
5
432
10
+0x03
VP3MAP[3:0]
VP2MAP[3:0]
Read/Write
R/W
Initial Value
0
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