ZLF645S0P2032G Zilog, ZLF645S0P2032G Datasheet - Page 48

• Manufacturer Part Number: ZLF645S0P2032G
• Description: Microcontrollers (MCU) 32K Flash 512B RAM 20 pin
• Manufacturer: Zilog

Specifications of ZLF645S0P2032G

• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 32 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 23. Port 4 Register (P4)
PS026407-0408
Bit
Field
Reset
R/W
Address
Bit Position
[7:0]
Port 4 Register
Value
The Port 4 register (see
R/W
Read
Write
P47
X
7
0
1
0
1
Description
Port 4 Pins 7–0—Each bit provides access to the corresponding Port 4 pin.
Pin configured as input or output in P4M register.
Pin level is Low.
Pin level is High.
Pin configured as output in P4M register.
Assert pin Low.
Assert pin High if configured as push-pull; make pin high-impedance if it is
open-drain.
R/W
P46
X
6
R/W
P45
Table
X
5
Banks 0-3: 04h; Linear: 004h
23) allows read and write access to the Port 4 pins.
R/W
P44
X
4
R/W
P43
X
3
ZLF645 Series Flash MCUs
R/W
P42
X
2
Product Specification
R/W
P41
X
1
Port 4 Register
R/W
P40
0
X
40