Z8F2480AN020SG Zilog, Z8F2480AN020SG Datasheet - Page 219
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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ESPI Control Register Definitions
PS025011-1010
ESPI Baud Rate Generator
ESPI Data Register
In ESPI Master mode, the Baud Rate Generator creates a lower frequency serial clock
(SCK) for data transmission synchronization between the Master and the external Slave.
The input to the Baud Rate Generator is the system clock. The ESPI Baud Rate High and
Low Byte registers combine to form a 16-bit reload value, BRG[15:0], for the ESPI Baud
Rate Generator. The ESPI baud rate is calculated using the following equation:
Minimum baud rate is obtained by setting BRG[15:0] to 0000H for a clock divisor value
of (2 x 65536 = 131072).
When the ESPI is disabled, the Baud Rate Generator can function as a basic 16-bit timer
with interrupt on timeout. Follow the steps below to configure the Baud Rate Generator as
a timer with interrupt on timeout:
1. Disable the ESPI by clearing the ESPIEN1,0 bits in the ESPI Control register.
2. Load the desired 16-bit count value into the ESPI Baud Rate High and Low Byte
3. Enable the Baud Rate Generator timer function and associated interrupt by setting the
The ESPI Data register (see
data register and the incoming receive data register. Reads from the ESPI Data register
return the contents of the receive data register. The receive data register is updated with
the contents of the shift register at the end of each transfer. Writes to the ESPI Data regis-
ter load the transmit data register unless TDRE = 0. Data is shifted out starting with bit 7.
The last bit received resides in bit position 0.
With the ESPI configured as a Master, writing a data byte to this register initiates the data
transmission. With the ESPI configured as a Slave, writing a data byte to this register
loads the shift register in preparation for the next data transfer with the external Master. In
either the MASTER or SLAVE modes, if TDRE = 0, writes to this register are ignored.
When the character length is less than 8 bits (as set by the NUMBITS field in the ESPI
Mode register), the transmit character must be left justified in the ESPI Data register. A
received character of less than 8 bits is right justified (last bit received is in bit position 0).
For example, if the ESPI is configured for 4-bit characters, the transmit characters must be
written to ESPIDATA[7:4] and the received characters are read from ESPIDATA[3:0]
I Baud Rate bits s
registers.
BRGCTL bit in the ESPI Control register to 1.
P R E L I M I N A R Y
Table 110
=
System Clock Frequency Hz
-------------------------------------------------------------------------------------- -
on page 206) addresses both the outgoing transmit
2
BRG[15:0]
Z8 Encore! XP
Enhanced Serial Peripheral Interface
Product Specification
®
F1680 Series
205
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