ZLF645S0P2032G Zilog, ZLF645S0P2032G Datasheet - Page 38

• 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 13. Port Configuration Register (PCON)
PS026407-0408
Bit
Field
Reset
R/W
Address
Bit Position
[7:4]
[3]
[2]
[1]
[0]
Port Configuration Register
Note:
—
X
7
The Port Configuration register (see
comparator output on Port 3. The PCON register is located in expanded register Bank F,
address 00h.
PCON register is not reset after a Stop Mode Recovery. Also, for package types other than
the 48-pin package, writes to bit 3 and bit 1 have no effect.
Value
—
0
1
0
1
0
1
0
1
Reserved
—
X
6
Description
Reserved—Must be written to 1; reads 11111b.
Port 4 Output Mode—Controls the output mode of Port 4.
Open-drain
Push/pull
Port 0 Output Mode—Controls the output mode of Port 0.
Write only; read returns 1.
Open-drain
Push/pull
Port 1 Output Mode—Controls the output mode of Port 1.
Write only; read returns 1
Open-drain
Push/pull
Comparator or IR Amplifier Output Port 3—Select digital outputs or
comparator, and IR amplifier outputs on
Write only; read returns 1.
P34 and P37 outputs are digital.
P34 is Comparator 1 or IR Amplifier output, P37 is Comparator 2 output.
—
X
5
—
X
4
Output Mode
Port 4
W
3
1
Bank F: 00h; Linear: F00h
Table
Output Mode
Port 0
13) configures the Port 0 output mode and the
W
2
1
P34 and P37.
Output Mode
ZLF645 Series Flash MCUs
Port 1
W
1
1
Product Specification
Port Configuration Register
Comp/IR Amp
Output Port 3
W
0
0
30