Rev. 1.00
68
September 11, 2018
Rev. 1.00
69
September 11, 2018
HT45F4050
A/D NFC Flash MCU
HT45F4050
A/D NFC Flash MCU
• SLEDC2 Register
Bit
7
6
5
4
3
2
1
0
Name
SLEDC27 SLEDC26 SLEDC25 SLEDC24 SLEDC23 SLEDC22 SLEDC21 SLEDC20
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
0
0
0
0
0
Bit 7~6
SLEDC27~SLEDC26
: PF7~PF4 source current selection
00:
Source current=Level 0 (min.)
01:
Source current=Level 1
10:
Source current=Level 2
11:
Source current=Level 3 (max.)
Bit 5~4
SLEDC25~SLEDC24
: PF3~PF0 source current selection
00
: Source current=Level 0 (min.)
01
: Source current=Level 1
10
: Source current=Level 2
11
: Source current=Level 3 (max.)
Bit 3~2
SLEDC23~SLEDC22
: PE4 source current selection
00
: Source current=Level 0 (min.)
01
: Source current=Level 1
10
: Source current=Level 2
11
: Source current=Level 3 (max.)
Bit 1~0
SLEDC21~SLEDC20
: PE3~PE0 source current selection
00
: Source current=Level 0 (min.)
01
: Source current=Level 1
10
: Source current=Level 2
11
: Source current=Level 3 (max.)
I/O Port Power Source Control
This device supports different I/O port power source selections for PA1 and PA3~PA7. The
port power can come from either the power pin VDD or VDDIO which is determined using the
PMPS1~PMPS0 bits in the PMPS register. The VDDIO power pin function should first be selected
using the corresponding pin-shared function selection bits if the port power is supposed to come
from the VDDIO pin. An important point to know is that the input power voltage on the VDDIO pin
should be equal to or less than the device supply power voltage when the VDDIO pin is selected as
the port power supply pin.
• PMPS Register
Bit
7
6
5
4
3
2
1
0
Name
—
—
—
—
—
—
PMPS1
PMPS0
R/W
—
—
—
—
—
—
R/W
R/W
POR
—
—
—
—
—
—
0
0
Bit 7~2
Unimplemented, read as "
0
"
Bit 1~0
PMPS1~PMPS0
: P
A1, PA3
~P
A7
pin power source selection
0x: VDD
1x: VDDIO