參數(shù)資料
型號: ST10F168-Q2
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP144
封裝: 28 X 28 MM, PLASTIC, QFP-144
文件頁數(shù): 29/76頁
文件大小: 483K
代理商: ST10F168-Q2
ST10F168
35/76
High Speed Synchronous Serial Channel
(SSC)
The High-Speed Synchronous Serial Interface
SSC
provides
flexible
high-speed
serial
communication between the ST10F168 and other
microcontrollers,
microprocessors
or
external
peripherals.
The SSC supports full-duplex and half-duplex
synchronous communication; The serial clock
signal can be generated by the SSC itself (master
mode) or be received from an external master
(slave mode). Data width, shift direction, clock
polarity and phase are programmable.
This allows communication with SPI-compatible
devices. Transmission and reception of data is
double-buffered. A 16-bit Baud rate generator pro-
vides the SSC with a separate serial clock signal.
The serial channel SSC has its own dedicated
16-bit Baud rate generator with 16-bit reload
capability, allowing Baud rate generation indepen-
dent from the timers.
SSCBR is the dual-function Baud rate Generator /
Reload register. Table 19 lists some possible
Baud rates against the required reload values and
the resulting bit times for a 25MHz CPU clock.
Note
The deviation errors given in the Table 18
are rounded. To avoid deviation errors use
a Baud rate crystal (providing a multiple of
the ASC0/SSC sampling frequency).
Table 19 : Synchronous Baud rate and reload values
Baud Rate
Bit Time
Reload Value
Reserved use a reload value > 0.
---
0000h
5M Baud
200ns
0001h
3.3M Baud
303ns
0002h
2.5M Baud
400ns
0004h
2M Baud
500ns
0005h
1M Baud
1
s
000Bh
100K Baud
10
s
007Ch
10K Baud
100
s
04E1h
1K Baud
1ms
30D3h
190.7 Baud
5.2ms
FFFFh
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