Z8F041APH020SG2156 ZiLOG, Z8F041APH020SG2156 Datasheet - Page 120
Z8F041APH020SG2156
Manufacturer Part Number
Z8F041APH020SG2156
Description
8-bit Microcontrollers - MCU 4K FLASH 1K RAM 128B NVDS
Manufacturer
ZiLOG
Datasheet
1.Z8F082ASJ020EG2156.pdf
(282 pages)
Specifications of Z8F041APH020SG2156
Rohs
yes
Core
eZ8
Processor Series
Z8F041xx
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
Program Memory Size
4 KB
Data Ram Size
1 KB
On-chip Adc
Yes
Operating Supply Voltage
2.7 V to 3.6 V
Operating Temperature Range
- 40 C to + 105 C
Package / Case
PDIP-20
Mounting Style
Through Hole
A/d Bit Size
10 bit
A/d Channels Available
8
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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PS022827-1212
Receiving Data using the Polled Method
8. Execute an EI instruction to enable interrupts.
The UART is now configured for interrupt-driven data transmission. Because the UART
Transmit Data Register is empty, an interrupt is generated immediately. When the UART
Transmit interrupt is detected, the associated interrupt service routine (ISR) performs the
following:
1. Write the UART Control 1 Register to select the multiprocessor bit for the byte to be
2. Set the Multiprocessor Bit Transmitter (MPBT) if sending an address byte, clear it if
3. Write the data byte to the UART Transmit Data Register. The transmitter automati-
4. Clear the UART Transmit interrupt bit in the applicable Interrupt Request Register.
5. Execute the IRET instruction to return from the interrupt-service routine and wait for
Observe the following steps to configure the UART for polled data reception:
1. Write to the UART Baud Rate High and Low Byte registers to set an acceptable baud
2. Enable the UART pin functions by configuring the associated GPIO port pins for
3. Write to the UART Control 1 Register to enable MULTIPROCESSOR Mode func-
4. Write to the UART Control 0 Register to:
5. Check the RDA bit in the UART Status 0 Register to determine if the Receive Data
–
transmitted:
sending a data byte.
cally transfers the data to the Transmit Shift Register and transmits the data.
the Transmit Data Register to again become empty.
rate for the incoming data stream.
alternate function operation.
tions, if appropriate.
–
–
Register contains a valid data byte (indicated by a 1). If RDA is set to 1 to indicate
available data, continue to
a 0), continue to monitor the RDA bit awaiting reception of the valid data.
Set or clear CTSE to enable or disable control from the remote receiver using the
CTS pin
Set the receive enable bit (REN) to enable the UART for data reception
Enable parity, if appropriate and if Multiprocessor mode is not enabled and select
either even or odd parity.
P R E L I M I N A R Y
Step
5. If the Receive Data Register is empty (indicated by
Z8 Encore! XP
Product Specification
®
F082A Series
Operation
103
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