ZLF645S2864GP0001 Maxim Integrated, ZLF645S2864GP0001 Datasheet - Page 48
ZLF645S2864GP0001
Manufacturer Part Number
ZLF645S2864GP0001
Description
8-bit Microcontrollers - MCU Crimzon Flash Infrared MCU
Manufacturer
Maxim Integrated
Datasheet
1.ZLF645E0H4864G2204.pdf
(201 pages)
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
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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
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