ZLF645S0Q2032G Maxim Integrated, ZLF645S0Q2032G Datasheet - Page 137
ZLF645S0Q2032G
Manufacturer Part Number
ZLF645S0Q2032G
Description
8-bit Microcontrollers - MCU Crimzon Flash Infrared MCU
Manufacturer
Maxim Integrated
Datasheet
1.ZLF645E0H4864G2204.pdf
(201 pages)
Specifications of ZLF645S0Q2032G
Core
Z8
Data Bus Width
8 bit
Maximum Clock Frequency
8 MHz
Program Memory Size
32 KB
Data Ram Size
1 KB
On-chip Adc
No
Operating Supply Voltage
2 V to 3.6 V
Package / Case
QFN-EP-20
Mounting Style
SMD/SMT
Interface Type
UART
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Number Of Programmable I/os
5
Number Of Timers
2 x 8 bit, 1 x 16 bit
On-chip Dac
No
Processor Series
ZLF645
Program Memory Type
Flash
Supply Voltage - Max
3.6 V
Supply Voltage - Min
2 V
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19-4572; Rev 0; 4/09
Table 61. Interrupt Types, Sources, and Vectors
When more than one interrupt is pending, priorities are resolved by a programmable
priority encoder controlled by the
activates when an interrupt request is granted. As a result, all subsequent interrupts are
disabled, and the Program Counter and Status Flags are saved. The cycle then branches to
the Program Memory vector location reserved for that interrupt.
All ZLF645 MCU interrupts are vectored through locations in the Program Memory. This
memory location and the next byte contain the 16-bit address of the interrupt service
routine for that particular interrupt request. To accommodate polled interrupt systems,
interrupt inputs are masked, and the
which of the interrupt requests require service.
An interrupt resulting from AN1 is mapped into IRQ2, and an interrupt from AN2 is
mapped into IRQ0. Interrupts IRQ2 and IRQ0 can be rising, falling, or both edge
triggered. These interrupts are user-programmable. The software can poll to identify the
state of the pin.
Name
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
Source
P32, UART Rx
P33, UART Tx, BRG,
SMR Event
P31
Timer 16
Timer 8
Low-Voltage Detection
Interrupt Priority
Vector Location
(Program Memory)
0,1
2, 3
4, 5
6, 7
8, 9
10, 11
Interrupt Request Register
Register. An interrupt machine cycle
ZLF645 Series Flash MCUs
Comments
External (P32), Rising, Falling
Edge Triggered
External (P33), Falling Edge
Triggered
External (P31), Rising, Falling
Edge Triggered
Internal
Internal
Internal
Product Specification
is polled to determine
Interrupts
129
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