Z8F4822AR020SG Zilog, Z8F4822AR020SG Datasheet - Page 118
Z8F4822AR020SG
Manufacturer Part Number
Z8F4822AR020SG
Description
IC ENCORE MCU FLASH 48K 64LQFP
Manufacturer
Zilog
Series
Encore!® XP®r
Specifications of Z8F4822AR020SG
Core Processor
Z8
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, IrDA, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
46
Program Memory Size
48KB (48K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
64-LQFP
Processor Series
Z8F482x
Core
eZ8
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
I2C, SPI, UART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
46
Number Of Timers
4
Operating Supply Voltage
3 V to 3.6 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
0 C
On-chip Adc
10 bit, 12 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
269-4271
Z8F4822AR020SG
Z8F4822AR020SG
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PS019921-0308
Receiving Data using the Interrupt-Driven Method
ditions). Follow the steps below to configure the UART receiver for interrupt-driven oper-
ation:
1. Write to the UART Baud Rate High and Low Byte registers to set the desired baud
2. Enable the UART pin functions by configuring the associated GPIO Port pins for
3. Execute a
4. Write to the Interrupt control registers to enable the UART Receiver interrupt and set
5. Clear the UART Receiver interrupt in the applicable Interrupt Request register.
6. Write to the UART Control 1 Register to enable MULTIPROCESSOR (9-bit) mode
7. Write the device address to the Address Compare Register (automatic multiprocessor
8. Write to the UART Control 0 register to:
9. Execute an
The UART is now configured for interrupt-driven data reception. When the UART
Receiver interrupt is detected, the associated interrupt service routine performs the follow-
ing:
1. Check the UART Status 0 register to determine the source of the interrupt - error,
2. If the interrupt was caused by data available, read the data from the UART Receive
The UART Receiver interrupt indicates the availability of new data (as well as error con-
rate.
alternate function operation.
the desired priority.
functions, if desired.
–
–
–
modes only).
–
–
break, or received data.
Data register. If operating in MULTIPROCESSOR (9-bit) mode, further actions may
be required depending on the MULTIPROCESSOR Mode bits
Set the MULTIPROCESSOR Mode Select (MPEN) to Enable
MULTIPROCESSOR mode.
Set the MULTIPROCESSOR Mode Bits, MPMD[1:0], to select the desired
address matching scheme.
Configure the UART to interrupt on received data and errors or errors only
(interrupt on errors only is unlikely to be useful for Z8 Encore! XP devices
without a DMA block).
Set the receive enable bit (REN) to enable the UART for data reception.
Enable parity, if desired and if MULTIPROCESSOR mode is not enabled, and
select either even or odd parity.
DI
EI
instruction to disable interrupts.
instruction to enable interrupts.
Z8 Encore! XP
Product Specification
MPMD[1:0]
®
F64XX Series
.
UART
104
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