ZLF645S2864GP0001 Maxim Integrated, ZLF645S2864GP0001 Datasheet - Page 117
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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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19-4572; Rev 0; 4/09
CTR2 data bits [4:3]
Negative Edge
Note:
SCLK
Z8 LXMC Data Bus
Z8 LXMC Data Bus
Positive Edge
T16 TRANSMIT Mode
In NORMAL or PING-PONG mode, the output of T16 when not enabled depends on
CTR1, bit 0. If this bit is set to 0, T16_OUT is a 1; if set to 1, T16_OUT is 0. You can
force the output of T16 to either 0 or 1 whether it is enabled or not by programming CTR1
bits [3:2] to a 10 or 11.
When bit 4 of CTR3 is set, the T16 output does not update. However, time-out interrupts
(flags) are still updated. In addition, the T8 carrier is not disrupted by timing out of the
T16 timer.
When T16 is enabled, a value of (TC16H * 256) + TC16L is loaded, and T16_OUT is
switched to its initial value (CTR1, bit 0). When T16 counts down to 0, T16_OUT is
toggled (in NORMAL or PING-PONG mode), an interrupt (CTR2, bit 1) is generated (if
enabled), and a status bit (CTR2, bit 5) is set. See
Global interrupts override this function as described in the
If T16 is in SINGLE-PASS mode, it is stopped at this point (see
it is in MODULO-N mode, it is loaded with TC16H * 256 + TC16L, and the counting
continues (see
at any time. The new values take effect when they are loaded.
Select
Clock
TC16
Clock
Figure 37
HI16
Figure 35. 16-Bit Counter/Timer Circuits
Counter T16
on page 110). You can modify the values in TC16H and TC16L
(TC16)
16-Bit
LO16
TC16
Figure
CTR2 data bit 2
35.
ZLF645 Series Flash MCUs
Interrupts
Counter/Timer Functional Blocks
Figure 36
Product Specification
T16_OUT
CTR2 data bit 1
on page 127.
on page 110). If
IRQ3
109
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