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參數(shù)資料
| 型號： | ST92195D7T1/XXX |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, OTPROM, 24 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | TQFP-64 |
| 文件頁數(shù)： | 136/250頁 |
| 文件大?。?/td> | 3010K |
| 代理商： | ST92195D7T1/XXX |
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ST92E195C/D-ST92T195C/D - GENERAL DESCRIPTION
1 GENERAL DESCRIPTION
The ST92E195C/D and ST92T195C/D microcon-
trollers are the EPROM/OTP versions of the
ST92195C/D ROM devices and are suitable for
product prototyping and low volume production.
Their performance derives from the use of a flexi-
ble 256-register programming model for ultra-fast
context switching and real-time event response.
The intelligent on-chip peripherals offload the ST9
core from I/O and data management processing
tasks allowing critical application tasks to get the
maximum
use
of
core
resources.
The
ST92195E195C/D and ST92195T195C/D MCUs
support low power consumption and low voltage
operation for power-efficient and low-cost embed-
ded systems.
1.0.1 ST9+ Core
The advanced Core consists of the Central
Processing Unit (CPU), the Register File and the
Interrupt controller.
The general-purpose registers can be used as ac-
cumulators, index registers, or address pointers.
Adjacent register pairs make up 16-bit registers for
addressing or 16-bit processing. Although the ST9
has an 8-bit ALU, the chip handles 16-bit opera-
tions, including arithmetic, loads/stores, and mem-
ory/register and memory/memory exchanges.
Two basic addressable spaces are available: the
Memory space and the Register File, which in-
cludes the control and status registers of the on-
chip peripherals.
1.0.2 Power Saving Modes
To optimize performance versus power consump-
tion, a range of operating modes can be dynami-
cally selected.
Run Mode. This is the full speed execution mode
with CPU and peripherals running at the maximum
clock speed delivered by the Phase Locked Loop
(PLL) of the Clock Control Unit (CCU).
Wait For Interrupt Mode. The Wait For Interrupt
(WFI) instruction suspends program execution un-
til an interrupt request is acknowledged. During
WFI, the CPU clock is halted while the peripheral
and interrupt controller keep running at a frequen-
cy programmable via the CCU. In this mode, the
power consumption of the device can be reduced
by more than 95% (Low power WFI).
Halt Mode. When executing the HALT instruction,
and if the Watchdog is not enabled, the CPU and
its peripherals stop operating and the status of the
machine
remains frozen
(the
clock is
also
stopped). A reset is necessary to exit from Halt
mode.
1.0.3 I/O Ports
Up to 28 I/O lines are dedicated to digital Input/
Output. These lines are grouped into up to five I/O
Ports and can be configured on a bit basis under
software control to provide timing, status signals,
timer and output, analog inputs, external interrupts
and serial or parallel I/O.
1.0.4 TV Peripherals
A set of on-chip peripherals form a complete sys-
tem for TV set and VCR applications:
– Voltage Synthesis
– VPS/WSS Slicer
– Teletext Slicer
– Teletext Display RAM
– OSD
1.0.5 On Screen Display
The human interface is provided by the On Screen
Display module, this can produce up to 26 lines of
up to 80 characters from a ROM of two 512-char-
acter sets. The character resolution is 10x10 dot.
Four character sizes are supported. Serial at-
tributes allow the user to select foreground and
background colors, character size and fringe back-
ground. Parallel attributes can be used to select
additional foreground and background colors and
underline on a character by character basis.
Note: ST92E195D7 and ST92T195D7 have pro-
grammable OSD fonts.
1.0.6 Teletext and Display Storage RAM
The internal Teletext and Display storage RAM
can be used to store Teletext pages as well as Dis-
play parameters.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
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| ST-922 | 制造商:UNBRANDED 功能描述:MULTIMETER DIGITAL |
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