ZLF645S0P2064G Zilog, ZLF645S0P2064G Datasheet - Page 46

• Manufacturer Part Number: ZLF645S0P2064G
• Description: Microcontrollers (MCU) 64K Flash 512B RAM 20 pin
• Manufacturer: Zilog

Specifications of ZLF645S0P2064G

• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 64 KB
• Data Ram Size: 512 KB
• Interface Type: ICP, UART
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 3
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Package / Case: PDIP-20
• Minimum Operating Temperature: 0 C
• Lead Free Status / Rohs Status: Details

PS026407-0408
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