ST7LIT10BY0 STMicroelectronics, ST7LIT10BY0 Datasheet - Page 86
ST7LIT10BY0
Manufacturer Part Number
ST7LIT10BY0
Description
8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI
Manufacturer
STMicroelectronics
Datasheet
1.ST7LIT10BF0.pdf
(159 pages)
Specifications of ST7LIT10BY0
Up To 4 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection, In-circuit Programming And In-application Programming (icp And Iap). 10k Write/erase Cycles Guaranteed, Data Retention
20 years at 55˚C.
128 Bytes Data Eeprom With Read-out Protection. 300k Write/erase Cycles Guaranteed, Data Retention
20 years at 55˚C.
Clock Sources
Internal 1% RC oscillator (on ST7FLITE15B and ST7FLITE19B), crystal/ceramic resonator or external clock
Five Power Saving Modes
Halt, Active-Halt, Auto Wake-up from Halt, Wait and Slow
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ST7LITE1xB
SERIAL PERIPHERAL INTERFACE (cont’d)
11.4.3.1 Functional Description
A basic example of interconnections between a
single master and a single slave is illustrated in
Figure
The MOSI pins are connected together and the
MISO pins are connected together. In this way
data is transferred serially between master and
slave (most significant bit first).
The communication is always initiated by the mas-
ter. When the master device transmits data to a
slave device via MOSI pin, the slave device re-
sponds by sending data to the master device via
Figure 54. Single Master/ Single Slave Application
86/159
1
2.
MSBit
GENERATOR
8-bit SHIFT REGISTER
CLOCK
SPI
MASTER
LSBit
MOSI
SCK
SS
MISO
+5V
the MISO pin. This implies full duplex communica-
tion with both data out and data in synchronized
with the same clock signal (which is provided by
the master device via the SCK pin).
To use a single data line, the MISO and MOSI pins
must be connected at each node (in this case only
simplex communication is possible).
Four possible data/clock timing relationships may
be chosen (see
and slave must be programmed with the same tim-
ing mode.
MISO
MOSI
SCK
SS
Figure 5 on page
MSBit
Not used if SS is managed
by software
8-bit SHIFT REGISTER
SLAVE
7) but master
LSBit
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