ZLF645S0P2064G Zilog, ZLF645S0P2064G Datasheet - Page 47

• 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

Table 22. Port 4 Mode Register (P4M)
PS026407-0408
Bit
Field
Reset
R/W
Address
Bit Position
[7]
[6]
[5]
[4]
[3]
[2]
[1]
[0]
Port 4 Mode Register
Note:
Definition
P47 I/O
The Port 4 Mode register (see
Bit 3 of the Port Configuration register (PCON) determines whether the output drive is
push/pull or open-drain.
Port 4 Mode register is not reset after a Stop Mode Recovery.
Value
W
7
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Definition
P46 I/O
Description
Defines P47 as output.
Defines P47 as input.
Defines P46 as output.
Defines P46 as input.
Defines P45 as output.
Defines P45 as input.
Defines P44 as output.
Defines P44 as input.
Defines P43 as output.
Defines P43 as input.
Defines P42 as output.
Defines P42 as input.
Defines P41 as output.
Defines P41 as input.
Defines P40 as output.
Defines P40 as input.
W
6
1
Definition
P45 I/O
W
5
1
Bank F: 09h; Linear: F09h
Table
Definition
P44 I/O
W
4
1
22) determines the I/O direction of each bit on Port 4.
Definition
P43 I/O
W
3
1
Definition
P42 I/O
ZLF645 Series Flash MCUs
W
2
1
Product Specification
Definition
P41 I/O
Port 4 Mode Register
W
1
1
Definition
P40 I/O
W
0
1
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