ZLF645S2864GP0001 Maxim Integrated, ZLF645S2864GP0001 Datasheet - Page 40

• Manufacturer Part Number: ZLF645S2864GP0001
• Description: 8-bit Microcontrollers - MCU Crimzon Flash Infrared MCU
• Manufacturer: Maxim Integrated

Specifications of ZLF645S2864GP0001

• 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 15. Port 0 Register (P0)
PS026408-1208
Bit
Field
Reset
R/W
Address
Bit Position
[7]
[6:0]
Port 0 Register
Note:
The Port 0 register (see
R/W
Only P00, P01, and P07 are available for ZLF645 Flash MCU 20-pin configuration.
P07
Read
Read
Write
Write
R/W
X
7
0
1
0
1
0
1
0
1
Description
Port 0 Pin 7—Available for I/O if UART Tx is disabled.
Pin configured as input or output in P01M register.
Pin level is Low.
Pin level is High.
Pin configured as output in P01M register, UCTL[7]=0.
Assert pin Low.
Assert pin High if configured as push-pull; make pin high-impedance if it is 
open-drain.
Port 0 Pins 6–0—Each bit provides access to the corresponding Port 0 pin.
Pin configured as input or output in P01M register.
Pin level is Low.
Pin level is High.
Pin configured as output in P01M register.
Assert pin Low.
Assert pin High if configured as push-pull; make pin high-impedance if it is 
open-drain.
R/W
P06
X
6
R/W
P05
Table
X
5
Bank 0–3: 00h; Linear: 000h
15) allows read and write access to the Port 0 pins.
R/W
P04
X
4
R/W
P03
X
3
ZLF645 Series Flash MCUs
R/W
P02
X
2
Product Specification
R/W
P01
X
1
Port 0 Register
R/W
P00
X
0
32