ST92F150JDV1QC STMicroelectronics, ST92F150JDV1QC Datasheet - Page 121
ST92F150JDV1QC
Manufacturer Part Number
ST92F150JDV1QC
Description
IC MCU 128K FLASH 100-PQFP
Manufacturer
STMicroelectronics
Series
ST9r
Datasheet
1.ST92F150CV1TB.pdf
(429 pages)
Specifications of ST92F150JDV1QC
Core Processor
ST9
Core Size
8/16-Bit
Speed
24MHz
Connectivity
CAN, I²C, LIN, SCI, SPI
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
77
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
6K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
100-QFP
Processor Series
ST92F15x
Core
ST9
Data Bus Width
8 bit, 16 bit
Data Ram Size
6 KB
Interface Type
CAN, I2C, SCI, SPI
Maximum Clock Frequency
24 MHz
Number Of Programmable I/os
80
Number Of Timers
5 x 16 bit
Operating Supply Voltage
4.5 V to 5.5 V
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ST92F150-EPB
Minimum Operating Temperature
- 40 C
On-chip Adc
16 bit x 10 bit
Case
QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-2137
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6 ON-CHIP DIRECT MEMORY ACCESS (DMA)
6.1 INTRODUCTION
The ST9 includes on-chip Direct Memory Access
(DMA) in order to provide high-speed data transfer
between peripherals and memory or Register File.
Multi-channel DMA is fully supported by peripher-
als having their own controller and DMA chan-
nel(s). Each DMA channel transfers data to or
from contiguous locations in the Register File, or in
Memory. The maximum number of bytes that can
be transferred per transaction by each DMA chan-
nel is 222 with the Register File, or 65536 with
Memory.
The DMA controller in the Peripheral uses an indi-
rect addressing mechanism to DMA Pointers and
Counter Registers stored in the Register File. This
is the reason why the maximum number of trans-
actions for the Register File is 222, since two Reg-
isters are allocated for the Pointer and Counter.
Register pairs are used for memory pointers and
counters in order to offer the full 65536 byte and
count capability.
Figure 56. DMA Data Transfer
GROUP F
PERIPHERAL
PAGED
REGISTERS
REGISTER FILE
PERIPHERAL
DATA
ST92F124/F150/F250 - ON-CHIP DIRECT MEMORY ACCESS (DMA)
DF
0
REGISTER FILE
COUNTER
ADDRESS
6.2 DMA PRIORITY LEVELS
The 8 priority levels used for interrupts are also
used to prioritize the DMA requests, which are ar-
bitrated in the same arbitration phase as interrupt
requests. If the event occurrence requires a DMA
transaction, this will take place at the end of the
current instruction execution. When an interrupt
and a DMA request occur simultaneously, on the
same priority level, the DMA request is serviced
before the interrupt.
An interrupt priority request must be strictly higher
than the CPL value in order to be acknowledged,
whereas, for a DMA transaction request, it must be
equal to or higher than the CPL value in order to
be executed. Thus only DMA transaction requests
can be acknowledged when the CPL=0.
DMA requests do not modify the CPL value, since
the DMA transaction is not interruptable.
REGISTER FILE
TRANSFERRED
MEMORY
DATA
OR
COUNTER VALUE
START ADDRESS
VR001834
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