参数资料
型号: ST62T28CB3
英文描述: 8-BIT MICROCONTROLLER ( MCU ) WITH OTP. ROM. FASTR A/D CONVERTER. 8-BIT AUTO-RELOAD TIMER. UART. OSG. SAFE RESET AND 28 PINS
中文描述: 8位微控制器(MCU)的与检察官办公室。光盘。 FASTR的A / D转换器。 8位自动重加载定时器。 UART的。业务支助。安全复位和28个引脚
文件页数: 38/84页
文件大小: 969K
代理商: ST62T28CB3
38/84
ST62T28C/E28C
I/O PORTS
(Cont’d)
4.1.3 ARTimer alternate functions
When the PWMOE bit of ARMC register is low, the
PA2/ARTIMout pin is configured as any standard
pin of port B through the port registers.
PA2/ARTIMout pin must be configured as output
push-pull through the DDR and OR registers to be
used as PWM output. When the PWMOE bit is set,
PA2/ARTIMout becomes the PWM output.
ARTIMin/PA3 is connected through the port regis-
ters as any standard pin of port B. To use PA3/PAR-
TIMin as AR Timer input, it must be configured as
input through DDRB.
4.1.4 SPI alternate functions
PD2/Sin and PD1/Scl pins must be configured as
input through the DDR and OR registers to be
used as data in and data clock (Slave mode) for
the SPI. All input modes are available and I/O's
can be read independently of the SPI at any time.
PD3/Sout must be configured in open drain output
mode to be used as data out for the SPI. In output
mode, the value present on the pin is the port data
register content only if PD3 is defined as push pull
output, while serial transmission is possible only in
open drain mode.
4.1.5 UART alternate functions
PD4/RXD1 pin must be configured as input
through the DDR and OR registers to be used as
reception line for the UART. All input modes are
available and PD4 can be read independently of
the UART at any time.
PD5/TXD1 pin must be configured as output
through the DDR and OR registers to be used as
transmission line for the UART. Value present on
the pin in output mode is the Data register content
as long as no transmission is active.
38
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