參數(shù)資料
型號: MC9S12A256BCPV
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
封裝: LQFP-112
文件頁數(shù): 80/126頁
文件大?。?/td> 3405K
代理商: MC9S12A256BCPV
MC9S12DP256B Device User Guide — V02.15
59
2.3 Detailed Signal Descriptions
2.3.1 EXTAL, XTAL — Oscillator Pins
EXTAL and XTAL are the crystal driver and external clock pins. On reset all the device clocks are derived
from the EXTAL input frequency. XTAL is the crystal output.
PP6
KWP6
PWM6
SS2
VDDX
PERP/
PPSP
Disabled
Port P I/O, Interrupt, Channel 6 of
PWM, SS of SPI2
PP5
KWP5
PWM5
MOSI2
VDDX
PERP/
PPSP
Disabled
Port P I/O, Interrupt, Channel 5 of
PWM, MOSI of SPI2
PP4
KWP4
PWM4
MISO2
VDDX
PERP/
PPSP
Disabled
Port P I/O, Interrupt, Channel 4 of
PWM, MISO2 of SPI2
PP3
KWP3
PWM3
SS1
VDDX
PERP/
PPSP
Disabled
Port P I/O, Interrupt, Channel 3 of
PWM, SS of SPI1
PP2
KWP2
PWM2
SCK1
VDDX
PERP/
PPSP
Disabled
Port P I/O, Interrupt, Channel 2 of
PWM, SCK of SPI1
PP1
KWP1
PWM1
MOSI1
VDDX
PERP/
PPSP
Disabled
Port P I/O, Interrupt, Channel 1 of
PWM, MOSI of SPI1
PP0
KWP0
PWM0
MISO1
VDDX
PERP/
PPSP
Disabled
Port P I/O, Interrupt, Channel 0 of
PWM, MISO2 of SPI1
PS7
SS0
VDDX
PERS/
PPSS
Up
Port S I/O, SS of SPI0
PS6
SCK0
VDDX
PERS/
PPSS
Up
Port S I/O, SCK of SPI0
PS5
MOSI0
VDDX
PERS/
PPSS
Up
Port S I/O, MOSI of SPI0
PS4
MISO0
———
VDDX
PERS/
PPSS
Up
Port S I/O, MISO of SPI0
PS3
TXD1
VDDX
PERS/
PPSS
Up
Port S I/O, TXD of SCI1
PS2
RXD1
VDDX
PERS/
PPSS
Up
Port S I/O, RXD of SCI1
PS1
TXD0
VDDX
PERS/
PPSS
Up
Port S I/O, TXD of SCI0
PS0
RXD0
VDDX
PERS/
PPSS
Up
Port S I/O, RXD of SCI0
PT[7:0]
IOC[7:0]
VDDX
PERT/
PPST
Disabled
Port T I/O, Timer channels
Pin Name
Funct. 1
Pin Name
Funct. 2
Pin Name
Funct. 3
Pin Name
Funct. 4
Pin Name
Funct. 5
Power
Supply
Internal Pull
Resistor
Description
CTRL
Reset
State
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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