QT2022/32 - Data Sheet: DS3051
Table 3: QT2022/32 Ball Assignment & Signal Description (Continued)
Ball
Signal Name
Dir.
Type
Description
D4
LED2
I/O
CMOS input with
50kΩ pullup to 1.2V,
or 10mA open drain
output
LED driver and General Purpose I/O:
Can be configured as a LED driver output or as a GPIO via MDIO register
bits 1.D007h.2:0. The default configuration is as a LED driver.
As an input, its state is displayed in MDIO register bit 1.D006h.5; as an
output it can be driven by MDIO register bits 1.D007h.2:0 or other internal
status signals (see Section 8.6 on page 70)
If this pin is held low during a hard reset, it will enable ‘two-byte’ addressing
of an peripheral I2C device. Please see Section 10.6 on page 89 for details.
D5
LED3
I/O
CMOS input or 10mA
open drain output
LED driver and General Purpose I/O:
Can be configured as a LED driver output or as a GPIO via MDIO bits
1.D008h.2:0. The default configuration is as a LED driver.
As an input, its state is displayed in MDIO register bit 1.D008h.5, as an
output it can be driven by MDIO bits 1.D008h.2:0 or other internal status
signals
(see Section 8.6 on page 70)
Reserved pins
D8
Reserved. Leave unconnected.
E9
M10
M11
H12
J12
K12
M12
P12
E13
J13
K13
L13
H14
L14
Note1: All CMOS pins are compatible with 3.3V logic. All CMOS inputs with internal pullups are to 1.2V. All CMOS outputs are open drain.
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