ZLF645S0P2864G Zilog, ZLF645S0P2864G Datasheet - Page 107

• Manufacturer Part Number: ZLF645S0P2864G
• Description: Microcontrollers (MCU) 64K Flash 512B RAM 28 pin
• Manufacturer: Zilog

Specifications of ZLF645S0P2864G

• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 64 KB
• Data Ram Size: 512 KB
• Interface Type: ICP, UART
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 3
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Package / Case: PDIP-28
• Minimum Operating Temperature: 0 C
• Lead Free Status / Rohs Status: Details

ZLF645 Series Flash MCUs
Product Specification
99
T8 DEMODULATION Mode
You must program TC8L and TC8H to
. After T8 is enabled, when the first edge (ris-
FFh
ing, falling, or both depending on CTR1 bits [5:4]) is detected, it starts to count down.
When a subsequent edge (rising, falling, or both depending on CTR1 bits [5:4]) is detected
during counting, the current value of T8 is complemented and put into one of the capture
registers.
If it is a positive edge, data is put into LO8; if it is a negative edge, data is put into HI8.
From that point, one of the edge detect status bits (CTR1, bits [1:0]) is set, and an interrupt
can be generated if enabled (CTR0, bit 2). Meanwhile, T8 is loaded with
and starts
FFh
counting again. If T8 reaches 0, the time-out status bit (CTR0, bit 5) is set, and an interrupt
can be generated if enabled (CTR0, bit 1). T8 then continues counting from
see
FFh(
Figure 32
on page 100).
PS026407-0408
Counter/Timer Functional Blocks