Z8F0213HH005EG Zilog, Z8F0213HH005EG Datasheet - Page 110

• Manufacturer Part Number: Z8F0213HH005EG
• Description: IC ENCORE MCU FLASH 2K 20SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F0213HH005EG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 20-SSOP
• 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: -
• Data Converters: -
• Other names: 269-4044; Z8F0213HH005EG

PS024314-0308
in hardware, software or some combination of the two, depending on the multiprocessor
configuration bits. In general, the address compare feature reduces the load on the CPU,
because it does not require access to the UART when it receives data directed to other
devices on the multi-node network. The following three MULTIPROCESSOR modes are
available in hardware:
•
•
•
These modes are selected with MPMD[1:0] in the UART Control 1 Register. For all
multiprocessor modes, bit MPEN of the UART Control 1 Register must be set to 1.
The first scheme is enabled by writing
address bytes cause an interrupt, while data bytes never cause an interrupt. The interrupt
service routine must manually check the address byte that caused triggered the interrupt. If
it matches the UART address, the software clears MPMD[0]. Each new incoming byte
interrupts the CPU. The software is responsible for determining the end of the frame. It
checks for the end-of-frame by reading the MPRX bit of the UART Status 1 Register for
each incoming byte. If MPRX=1, a new frame has begun. If the address of this new frame
is different from the UART’s address, MPMD[0] must be set to 1 causing the UART
interrupts to go inactive until the next address byte. If the new frame’s address matches the
UART’s, the data in the new frame is processed as well.
The second scheme requires the following: set MPMD[1:0] to
address into the UART Address Compare register. This mode introduces additional
hardware control, interrupting only on frames that match the UART’s address. When an
incoming address byte does not match the UART’s address, it is ignored. All successive
data bytes in this frame are also ignored. When a matching address byte occurs, an inter-
rupt is issued and further interrupts now occur on each successive data byte. When the first
data byte in the frame is read, the NEWFRM bit of the UART Status 1 Register is asserted.
All successive data bytes have NEWFRM=0. When the next address byte occurs, the hard-
ware compares it to the UART’s address. If there is a match, the interrupts continues and
the NEWFRM bit is set for the first byte of the new frame. If there is no match, the UART
ignores all incoming bytes until the next address match.
The third scheme is enabled by setting MPMD[1:0] to
address into the UART Address Compare Register. This mode is identical to the second
scheme, except that there are no interrupts on address bytes. The first data byte of each
frame remains accompanied by a NEWFRM assertion.
Interrupt on all address bytes
Interrupt on matched address bytes and correctly framed data bytes
Interrupt only on correctly framed data bytes
01b
to MPMD[1:0]. In this mode, all incoming
Universal Asynchronous Receiver/Transmitter
11b
Z8 Encore! XP
and by writing the UART’s
10B
Product Specification
and write the UART’s
®
F0823 Series
100