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參數資料
型號: MC68HC16Y1
廠商: Motorola, Inc.
英文描述: 16-Bit Modular Microcontroller(16位模塊化微控制器)
中文描述: 16位微控制器模塊(16位模塊化微控制器)
文件頁數: 57/122頁
文件大小: 749K
代理商: MC68HC16Y1
MC68HC16Y1
MC68HC16Y1TS/D
MOTOROLA
57
3.8.2 Port E
Port E can be made available in all operating modes. The state of BERR and DATA8 during reset con-
trols whether the port E pins are used as bus control signals or discrete I/O lines.
If the MCU is in emulator mode, an access of the port E data, data direction, or pin assignment registers
(PORTE, DDRE, PEPAR) is forced to go external. This allows port replacement logic to be supplied ex-
ternally, giving an emulator access to the bus control signals.
PORTE is a single register that can be accessed in two locations. It can be read or written at any time
the MCU is not in emulator mode.
The bits in this register control the direction of the pin drivers when the pins are configured as I/O. Any
bit in this register set to one configures the corresponding pin as an output. Any bit in this register
cleared to zero configures the corresponding pin as an input. This register can be read or written at any
time the MCU is not in emulator mode.
The bits in this register control the function of each port E pin. Any bit set to one defines the correspond-
ing pin to be a bus control signal, with the function shown in the following table. Any bit cleared to zero
defines the corresponding pin to be an I/O pin, controlled by PORTE and DDRE.
* When PEPA3 is set, the PE3 pin goes to logic level one. The CPU16 does not support the control function for this
pin.
PORTE
— Port E Data Register
$YFFA11, $YFFA13
7
6
5
4
3
2
1
0
PE7
RESET:
U
PE6
PE5
PE4
PE3
PE2
PE1
PE0
U
U
U
U
U
U
U
DDRE
— Port E Data Direction Register
$YFFA15
7
6
5
4
3
2
1
0
DDE7
RESET:
0
DDE6
DDE5
DDE4
DDE3
DDE2
DDE1
DDE0
0
0
0
0
0
0
0
PEPAR
— Port E Pin Assignment Register
$YFFA17
7
6
5
4
3
2
1
0
PEPA7
RESET (Expanded, Single-chip):
DATA8
DATA8
0
PEPA6
PEPA5
PEPA4
PEPA3
PEPA2
PEPA1
PEPA0
DATA8
0
DATA8
0
DATA8
0
DATA8
0
DATA8
0
DATA8
0
0
Table 19 Port E Pin Assignments
PEPAR Bit
PEPA7
PEPA6
PEPA5
PEPA4
PEPA3
PEPA2
PEPA1
PEPA0
Port E Signal
PE7
PE6
PE5
PE4
PE3
PE2
PE1
PE0
Bus Control Signal
SIZ1
SIZ0
AS
DS
—*
AVEC
DSACK1
DSACK0
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相關代理商/技術參數
參數描述
MC68HC16Z1CAG 制造商:Freescale Semiconductor 功能描述:
MC68HC16Z1CAG16 功能描述:16位微控制器 - MCU 16 BIT MCU 1K RAM RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT
MC68HC16Z1CAG16 制造商:Freescale Semiconductor 功能描述:IC16-BIT MICROCONTROLLER
MC68HC16Z1CAG20 功能描述:16位微控制器 - MCU 16 BIT MCU 1K RAM RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT
MC68HC16Z1CAG20 制造商:Freescale Semiconductor 功能描述:Microcontroller
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