ZLF645S2864GP0001T Maxim Integrated, ZLF645S2864GP0001T Datasheet - Page 48

• 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

Table 22. Port 4 Register (P4)
PS026408-1208
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
22) 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