ZLF645S2864GP0001T Maxim Integrated, ZLF645S2864GP0001T Datasheet - Page 46

• Manufacturer Part Number: ZLF645S2864GP0001T
• Description: 8-bit Microcontrollers - MCU Crimzon Flash Infrared MCU
• Manufacturer: Maxim Integrated

Specifications of ZLF645S2864GP0001T

• Core: Z8
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 1 KB
• Operating Supply Voltage: 2 V to 3.6 V
• Interface Type: UART
• Number Of Programmable I/os: 5
• Number Of Timers: 2 x 8 bit, 1 x 16 bit
• Processor Series: ZLF645
• Program Memory Type: Flash

PS026408-1208
Bit Position
[3]
[2]
[1]
[0]
Note:
Port 3 register is not reset after a Stop Mode Recovery.
Value
Read
Read
Read
Read
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
Description
Port 3, Pin 3 Input—Writing this bit has no effect.
If P3M[1]=0:
P33 is Low.
P33 is High.
If P3M[1]=1 or SMR4[4]=1:
SMR condition exists.
SMR condition does not exist.
Port 3, Pin 2 Input—Writing this bit has no effect.
If P3M[1]=0:
P32 input is Low.
P32 input is High.
If P3M[1]=1:
Comparator 2 output is Low.
Comparator 2 output is High.
Port 3, Pin 1 Input—Writing this bit has no effect.
If P3M[2:1]=00:
P31 input is Low.
P31 input is High.
If P3M[2:1]=01:
Comparator 1 output is Low.
Comparator 1 output is High.
If P3M[2:1]=10 or 11:
IR amplifier output is Low.
IR amplifier output is High.
Port 3, Pin 0 Input—Writing this bit has no effect.
If P3M[1]=0:
P30 input is Low.
P30 input is High.
If P3M[1]=1:
Reads as 1.
ZLF645 Series Flash MCUs
Product Specification
Port 3 Register
38