EZ80L92AZ050EC00TR Zilog, EZ80L92AZ050EC00TR Datasheet - Page 138
EZ80L92AZ050EC00TR
Manufacturer Part Number
EZ80L92AZ050EC00TR
Description
IC EZ80 MPU 100LQFP
Manufacturer
Zilog
Datasheet
1.EZ80L92AZ020SG.pdf
(231 pages)
Specifications of EZ80L92AZ050EC00TR
Processor Type
eZ80
Features
High Speed, Single-Cycle Instruction-Fetch
Speed
50MHz
Voltage
3.3V
Mounting Type
Surface Mount
Package / Case
100-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
EZ80L92AZ050EC00T
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 138 of 231
- Download datasheet (3Mb)
PS013014-0107
SPI Flags
The SPI is double-buffered on Read, but not on Write. If a Write is performed during data
transfer, the transfer occurs uninterrupted, and the Write is unsuccessful. This condition
causes the WRITE COLLISION (WCOL) status bit in the SPI_SR register to be set. After
a data byte is shifted, the SPIF flag of the SPI_SR register is set.
In SPI MASTER mode, the SCK pin is an output. It idles High or Low, depending on the
CPOL bit in the SPI_CTL register, until data is written to the shift register. Data transfer is
initiated by writing to the transmit shift register, SPI_TSR. Eight clocks are then generated
to shift the eight bits of transmit data out the MOSI pin while shifting in eight bits of data
on the MISO pin. After transfer, the SCK signal idles.
In SPI SLAVE mode, the start logic receives a logic Low from the SS pin and a clock
input at the SCK pin, and the slave is synchronized to the master. Data from the master is
received serially from the slave MOSI signal and loads the 8-bit shift register. After the 8-
bit shift register is loaded, its data is parallel transferred to the Read buffer. During a Write
cycle data is written into the shift register, then the slave waits for the SPI master to initiate
a data transfer, supply a clock signal, and shift the data out on the slave's MISO signal.
If the CPHA bit in the SPI_CTL register is 0, a transfer begins when SS pin signal goes
Low and the transfer ends when SS goes High after eight clock cycles on SCK. When the
CPHA bit is set to 1, a transfer begins the first time SCK becomes active while SS is Low
and the transfer ends when the SPIF flag gets set.
Mode Fault
The Mode Fault flag (MODF) indicates that there may be a multimaster conflict for sys-
tem control. The MODF bit is normally cleared to 0 and is only set to 1 when the master
device’s SS pin is pulled Low. When a mode fault is detected, the following occurs:
1. The MODF flag (SPI_SR[4]) is set to 1.
2. The SPI device is disabled by clearing the SPI_EN bit (SPI_CTL[5]) to 0.
3. The MASTER_EN bit (SPI_CTL[4]) is cleared to 0, forcing the device into SLAVE
4. If the SPI interrupt is enabled by setting IRQ_EN (SPI_CTL[7]) High, an SPI inter-
Clearing the Mode Fault flag is performed by reading the SPI Status register. The other
SPI control bits (SPI_EN and MASTER_EN) must be restored to their original states by
user software after the Mode Fault flag is cleared.
mode.
rupt is generated.
Product Specification
Serial Peripheral Interface
eZ80L92 MCU
132
Related parts for EZ80L92AZ050EC00TR
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Communication Controllers, ZILOG INTELLIGENT PERIPHERAL CONTROLLER (ZIP)
Manufacturer:
Zilog, Inc.
Datasheet:
Part Number:
Description:
KIT DEV FOR Z8 ENCORE 16K TO 64K
Manufacturer:
Zilog
Datasheet:
Part Number:
Description:
KIT DEV Z8 ENCORE XP 28-PIN
Manufacturer:
Zilog
Datasheet:
Part Number:
Description:
DEV KIT FOR Z8 ENCORE 8K/4K
Manufacturer:
Zilog
Datasheet:
Part Number:
Description:
KIT DEV Z8 ENCORE XP 28-PIN
Manufacturer:
Zilog
Datasheet:
Part Number:
Description:
DEV KIT FOR Z8 ENCORE 4K TO 8K
Manufacturer:
Zilog
Datasheet:
Part Number:
Description:
CMOS Z8 microcontroller. ROM 16 Kbytes, RAM 256 bytes, speed 16 MHz, 32 lines I/O, 3.0V to 5.5V
Manufacturer:
Zilog, Inc.
Datasheet:
Part Number:
Description:
Low-cost microcontroller. 512 bytes ROM, 61 bytes RAM, 8 MHz
Manufacturer:
Zilog, Inc.
Datasheet:
Part Number:
Description:
Z8 4K OTP Microcontroller
Manufacturer:
Zilog, Inc.
Datasheet:
Part Number:
Description:
CMOS SUPER8 ROMLESS MCU
Manufacturer:
Zilog, Inc.
Datasheet:
Part Number:
Description:
SL1866 CMOSZ8 OTP Microcontroller
Manufacturer:
Zilog, Inc.
Datasheet:
Part Number:
Description:
SL1866 CMOSZ8 OTP Microcontroller
Manufacturer:
Zilog, Inc.
Datasheet:
Part Number:
Description:
OTP (KB) = 1, RAM = 125, Speed = 12, I/O = 14, 8-bit Timers = 2, Comm Interfaces Other Features = Por, LV Protect, Voltage = 4.5-5.5V
Manufacturer:
Zilog, Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Zilog, Inc.
Datasheet: