ST92F150JDV1 STMicroelectronics, ST92F150JDV1 Datasheet - Page 263
ST92F150JDV1
Manufacturer Part Number
ST92F150JDV1
Description
8-bit MCU
Manufacturer
STMicroelectronics
Datasheet
1.ST92F150CR1.pdf
(429 pages)
Specifications of ST92F150JDV1
Internal Memory
Single Voltage FLASH up to 256 Kbytes, RAM up to 8Kbytes, 1K byte E3 (Emulated EEPROM)
Minimum Instruction Time
83 ns (24 MHz int. clock)
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I
Figure 126. I
10.8.3 Functional Description
Refer to the I2CCR, I2CSR1 and I2CSR2 registers
in
The I
between the ST9 microcontroller and the I
protocol. In addition to receiving and transmitting
data, the interface converts data from serial to
parallel format and vice versa using an interrupt or
polled handshake.
It operates in Multimaster/slave I
lection of the operating mode is made by software.
The I
data pin (SDA) and a clock pin (SCL) which must
be configured as open drain when the I
enabled by programming the I/O port bits and the
PE bit in the I2CCR register. In this case, the value
of the external pull-up resistance used depends on
the application.
When the I
ports revert to being standard I/O port pins.
2
C BUS INTERFACE (Cont’d)
Section
2
2
C interface is connected to the I
C interface works as an I/O interface
SCL
SDA
10.8.7. for the bit definitions.
2
C cell is disabled, the SDA and SCL
2
C Interface Block Diagram
DMA
CONTROL
CONTROL
CLOCK
DATA
CONTROL SIGNALS
2
C mode. The se-
2
C bus by a
2
C cell is
2
C bus
LOGIC AND INTERRUPT/DMA REGISTERS
CLOCK CONTROL REGISTER
OWN ADDRESS REGISTER 2
OWN ADDRESS REGISTER 1
GENERAL CALL ADDRESS
DATA SHIFT REGISTER
STATUS REGISTER 1
STATUS REGISTER 2
CONTROL REGISTER
DATA BUS
The I
Six of them are used for initialization:
– Own Address Registers I2COAR1, I2COAR2
– General Call Address Register I2CADR
– Clock Control Registers I2CCCR, I2CECCR
– Control register I2CCR
The following four registers are used during data
transmission/reception:
– Data Register I2CDR
– Control Register I2CCR
– Status Register 1 I2CSR1
– Status Register 2 I2CSR2
DATA REGISTER
COMPARATOR
2
C interface has sixteen internal registers.
INTERRUPT
I2C BUS INTERFACE
VR02119A
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