ZLF645S2864GP0001 Maxim Integrated, ZLF645S2864GP0001 Datasheet - Page 42

• 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 17. Port 2 Mode Register (P2M)
PS026408-1208
Bit
Field
Reset
R/W
Address
Bit Position
[7]
[6]
[5]
[4]
[3]
[2]
[1]
[0]
Port 2 Mode Register
Note:
Definition
P27 I/O
The Port 2 Mode register (see
Bit 0 of the Port 3 Mode register determines whether the output drive is push/pull or 
open-drain.
Port 2 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
Description
Defines P27 as output.
Defines P27 as input.
Defines P26 as output.
Defines P26 as input.
Defines P25 as output.
Defines P25 as input.
Defines P24 as output.
Defines P24 as input.
Defines P23 as output.
Defines P23 as input.
Defines P22 as output.
Defines P22 as input.
Defines P21 as output.
Defines P21 as input.
Defines P20 as output.
Defines P20 as input.
P26 I/O
W
6
1
Definition
P25 I/O
W
Bank Independent: F6h; Linear: 0F6h
5
1
Table
Definition
P24 I/O
W
17) determines the I/O direction of each bit on Port 2.
4
1
Definition
P23 I/O
W
3
1
Definition
P22 I/O
ZLF645 Series Flash MCUs
W
2
1
Product Specification
Definition
P21 I/O
Port 2 Mode Register
W
1
1
Definition
P20 I/O
W
0
1
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