ZLF645 MAXIM [Maxim Integrated Products], ZLF645 Datasheet - Page 44

• Manufacturer Part Number: ZLF645
• Description: Flash MCUs with Learning Amplification
• Manufacturer: MAXIM [Maxim Integrated Products]

Table 19. Port 3 Mode Register (P3M)
PS026408-1208
Bit
Field
Reset
R/W
Address
Bit Position
[7:3]
[2]
[1]
[0]
Port 3 Mode Register
Note:
—
X
The Port 3 Mode register (see
inputs and the output mode of Port 2. When bit 2 is set, the IR Learning Amplifier is used
instead of the COMP1 comparator, regardless of the value of bit 1.
7
Port 3 Mode register is not reset after a Stop Mode Recovery.
R/W
—
W
W
W
—
X
6
Value
Reserved
—
0
1
0
1
0
1
—
X
5
Description
Reserved—Must be written to 1. Reads return 11111b.
IR Learning Amplifier disabled.
IR Learning Amplifier enabled with P31 configured as
amplifier input.
DIGITAL/ANALOG Mode
P30, P31, P32, P33 are digital inputs.
P30, P32, and P33 are comparator inputs. If P3M[2]=0, P31 also
function as a comparator input. If P3M[2]=1, P31 is the IR amplifier
input.
Port 2 open-drain.
Port 2 push/pull.
Bank Independent: F7h; Linear: 0F7h
—
X
4
Table
—
X
3
19) is used to configure the functionality of Port 3
IR Learning
Amplifier
W
2
0
ZLF645 Series Flash MCUs
DIGITAL/
ANALOG
Mode
Product Specification
W
1
0
Port 3 Mode Register
Open-Drain
Port 2
W
0
0
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