參數(shù)資料
型號: MC9S12A32
廠商: 飛思卡爾半導體(中國)有限公司
英文描述: 16 bit Microcontroller Unit (MCU)(16位MCU)
中文描述: 16位微控制器單元(MCU)(16位微控制器)
文件頁數(shù): 64/128頁
文件大?。?/td> 1835K
代理商: MC9S12A32
MC9S12DJ64 Device User Guide — V01.20
64
2.3.55 PS2 / RXD1 — Port S I/O Pin 2
PS2 is a general purpose input or output pin. It can be configured as the receive pin RXD of Serial
Communication Interface 1 (SCI1).
2.3.56 PS1 / TXD0 — Port S I/O Pin 1
PS1 is a general purpose input or output pin. It can be configured as the transmit pin TXD of Serial
Communication Interface 0 (SCI0).
2.3.57 PS0 / RXD0 — Port S I/O Pin 0
PS0 is a general purpose input or output pin. It can be configured as the receive pin RXD of Serial
Communication Interface 0 (SCI0).
2.3.58 PT[7:0] / IOC[7:0] — Port T I/O Pins [7:0]
PT7-PT0 are general purpose input or output pins. They can be configured as input capture or output
compare pins IOC7-IOC0 of the Enhanced Capture Timer (ECT).
2.4 Power Supply Pins
MC9S12DJ64 power and ground pins are described below.
NOTE:
All VSS pins must be connected together in the application.
Table 2-2 MC9S12DJ64 Power and Ground Connection Summary
Pin Number
Nominal
Voltage
112-pin QFP
VDD1, 2
13, 65
2.5V
Internal power and ground generated by internal regulator
VSS1, 2
14, 66
0V
VDDR
41
5.0V
External power and ground, supply to pin drivers and internal
voltage regulator.
VSSR
40
0V
VDDX
107
5.0V
External power and ground, supply to pin drivers.
VSSX
106
0V
VDDA
83
5.0V
Operating voltage and ground for the analog-to-digital
converters and the reference for the internal voltage regulator,
allows the supply voltage to the A/D to be bypassed
independently.
VRL
85
0V
Reference voltages for the analog-to-digital converter.
VRH
84
5.0V
Mnemonic
Description
VSSA
86
0V
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