ZLF645S0P2032G Zilog, ZLF645S0P2032G Datasheet - Page 151

• 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

PS026407-0408
After the following example code is executed, a 1 on P20 will wake the part from
STOP mode:
After the following example code is executed when the value of P2 is 00h, a 1 on P20
will wake the part from STOP mode:
LD P2M, #%FF
SRP #%0F
LD SMR1, #%01
SRP #%00
LD P2, #%00
NOP
STOP
LD P2M, #%FF
SRP #%0F
LD SMR1, #%01
SRP #%00
LD R6, P2
NOP
STOP
;Set Port 2 to inputs.
;Point to expanded bank F
;Select P20 for SMR1.
;Point to bank 0
;Write 00h to Port 2, so the P20 reference
;value is 0, and a 1 on P20 wakes the part.
;Set ports to inputs.
;Point to expanded bank F
;Select P20 for SMR1.
;Point to bank 0
;If a 0 is read from Port 2, the P20 reference
;value is 0, so a 1 on P20 wakes the part.
ZLF645 Series Flash MCUs
Reset/Stop Mode Recovery Status
Product Specification
143