Z8F011ASH020EG2156 ZiLOG, Z8F011ASH020EG2156 Datasheet - Page 71
Z8F011ASH020EG2156
Manufacturer Part Number
Z8F011ASH020EG2156
Description
8-bit Microcontrollers - MCU 1K FLASH 256B RAM 16B NVDS
Manufacturer
ZiLOG
Datasheet
1.Z8F011AHJ020EG2156.pdf
(257 pages)
Specifications of Z8F011ASH020EG2156
Rohs
yes
Core
eZ8
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
Program Memory Size
1 KB
Data Ram Size
256 B
On-chip Adc
No
Package / Case
SOIC-20
Mounting Style
SMD/SMT
Interface Type
UART
Maximum Operating Temperature
+ 105 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
17
Number Of Timers
2
Program Memory Type
Flash
Supply Voltage - Max
3.6 V
Supply Voltage - Min
2.7 V
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Interrupt Controller
PS025113-1212
Interrupt Vector Listing
Note:
The Interrupt Controller on the Z8 Encore!
requests from the on-chip peripherals and the GPIO port pins. The features of the Interrupt
Controller include:
•
•
•
•
Interrupt requests (IRQs) allow peripheral devices to suspend CPU operation in an orderly
manner and force the CPU to start an interrupt service routine (ISR). Usually this interrupt
service routine is involved with the exchange of data, status information or control infor-
mation between the CPU and the interrupting peripheral. When the service routine is com-
pleted, the CPU returns to the operation from which it was interrupted.
The eZ8 CPU supports both vectored and polled interrupt handling. For polled interrupts,
the Interrupt Controller has no effect on operation. For more information about interrupt
servicing by the eZ8 CPU, refer to the
able for download at www.zilog.com.
Table 34 lists the interrupts available in order of priority. The interrupt vector is stored
with the most significant byte (MSB) at the even program memory address and the least
significant byte (LSB) at the odd program memory address.
Some port interrupts are not available on the 20-pin and 28-pin packages. The ADC inter-
rupt is unavailable on devices not containing an ADC.
Seventeen interrupt sources using sixteen unique interrupt vectors:
–
–
Flexible GPIO interrupts
–
–
Three levels of individually programmable interrupt priority
Watchdog Timer can be configured to generate an interrupt
m
Twelve GPIO port pin interrupt sources
Five on-chip peripheral interrupt sources (Comparator Output interrupt shares one
interrupt vector with PA6)
Eight selectable rising and falling edge GPIO interrupts
Four dual-edge interrupts
eZ8 CPU User Manual
®
F0830 Series products prioritize the interrupt
Z8 Encore!
(UM0128), which is avail-
Product Specification
Interrupt Controller
®
F0830 Series
53
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