Z8F2480AN020SG Zilog, Z8F2480AN020SG Datasheet - Page 89
Z8F2480AN020SG
Manufacturer Part Number
Z8F2480AN020SG
Description
MCU 8BIT 24KB FLASH 44LQFP
Manufacturer
Zilog
Series
Encore!® XP®r
Specifications of Z8F2480AN020SG
Core Processor
Z8
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, IrDA, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
Number Of I /o
37
Program Memory Size
24KB (24K x 8)
Program Memory Type
FLASH
Ram Size
3K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
44-LQFP
Processor Series
Z8F248x
Core
eZ8
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
I2C, SPI, UART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
37
Number Of Timers
3
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
0 C
On-chip Adc
10 bit, 8 Channel
For Use With
770-1002 - ISP 4PORT ZILOG Z8 ENCORE! MCU269-4643 - KIT DEV Z8 ENCORE XP 28-PIN269-4630 - DEV KIT FOR Z8 ENCORE 8K/4K269-4629 - KIT DEV Z8 ENCORE XP 28-PIN269-4628 - KIT DEV Z8 ENCORE XP 8-PIN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
269-4676
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
Z8F2480AN020SG
Manufacturer:
Zilog
Quantity:
85
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Table 35. Interrupt Request 0 Register (IRQ0)
Interrupt Control Register Definitions
BITS
FIELD
RESET
R/W
ADDR
PS025011-1010
Caution:
Caution:
Software Interrupt Assertion
Interrupt Request 0 Register
R/W
T2I
7
0
Program code can generate interrupts directly. Writing 1 to the correct bit in the Interrupt
Request register triggers an interrupt (assuming that interrupt is enabled). When the
interrupt request is acknowledged by the eZ8 CPU, the bit in the Interrupt Request register
is automatically cleared to 0.
Poor coding style that can result in lost interrupt requests:
Good coding style that avoids lost-interrupt requests:
For all interrupts other than the Watchdog Timer interrupt, the Primary Oscillator Fail
Trap, and the Watchdog Oscillator Fail Trap, the Interrupt Control registers enable
individual interrupts, set interrupt priorities, and indicate interrupt requests.
The Interrupt Request 0 (IRQ0) register (see
requests for both vectored and polled interrupts. When a request is presented to the
interrupt controller, the corresponding bit in the IRQ0 register becomes 1. If interrupts are
globally enabled (vectored interrupts), the interrupt controller passes an interrupt request
to the eZ8 CPU. If interrupts are globally disabled (polled interrupts), the eZ8 CPU can
read the Interrupt Request 0 register to determine if any interrupt requests are pending.
The following coding style used to generate software interrupts by setting bits in the
Interrupt Request registers is not recommended. All incoming interrupts received
between execution of the first LDX command and the final LDX command are lost.
To avoid missing interrupts, use the following coding style to set bits in the Interrupt
Request registers.
R/W
T1I
6
0
LDX r0, IRQ0
OR r0, MASK
LDX IRQ0, r0
ORX IRQ0, MASK
R/W
T0I
5
0
P R E L I M I N A R Y
U0RXI
R/W
4
0
FC0H
Table 35
U0TXI
R/W
3
0
on page 75) stores the interrupt
Z8 Encore! XP
R/W
I 2 CI
2
0
Product Specification
SPII
R/W
1
0
®
Interrupt Controller
F1680 Series
ADCI
R/W
0
0
75
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