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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： | 105/122頁 |
| 文件大?。?/td> | 749K |
| 代理商： | MC68HC16Y1 |
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MC68HC16Y1
MC68HC16Y1TS/D
MOTOROLA
105
7.2.2 SPI Registers
The programmer's model for the SPI consists of the MCCI global and pin control registers, the SPI con-
trol register (SPCR), the SPI status register (SPSR), and the SPI data register (SPSR). All SPI registers
can be read and written by the CPU. SPCR must be initialized before the SPI is enabled to ensure de-
fined operation. The SPI is enabled by setting the SPE bit in SPCR. Reset values are shown below each
register.
SPCR contains parameters for configuring the SPI. The CPU has read and write access to all control
bits, but the MCCI has read access only to all bits except SPE. Writing a new value to SPCR while the
SPI is enabled disrupts operation. Writing the same value into SPCR while the SPI is enabled has no
effect on SPI operation.
SPIE — SPI Interrupt Enable
0 = SPI interrupts disabled
1 = SPI interrupts enabled
SPE — SPI Enable
0 = SPI is disabled. SPI pins can be used for general-purpose I/O.
1 = SPI is enabled. Pins allocated by PMCPAR are controlled by the SPI.
WOMP — Wired-OR Mode for SPI Pins
0 = Outputs have normal MOS drivers.
1 = Pins designated for output by DDRMC have open-drain drivers.
WOMP allows SPI pins to be connected for wired-OR operation, regardless of whether they are used
for general-purpose output or for SPI output. WOMP affects the pins whether the SPI is enabled or dis-
abled.
MSTR — Master/Slave Mode Select
0 = SPI is a slave device and only responds to externally generated serial data.
1 = SPI is system master and can initiate transmission to external SPI devices.
MSTR configures the SPI for either master or slave mode operation. This bit is cleared on reset and
may only be written by the CPU.
CPOL — Clock Polarity
0 = The inactive state value of SCK is logic level zero.
1 = The inactive state value of SCK is logic level one.
CPOL is used to determine the inactive state value of the serial clock (SCK). It is used with CPHA to
produce a desired clock/data relationship between master and slave devices.
CPHA — Clock Phase
0 = Data captured on the leading edge of SCK and changed on the following edge of SCK.
1 = Data is changed on the leading edge of SCK and captured on the following edge of SCK.
CPHA determines which edge of SCK causes data to change and which edge causes data to be cap-
tured. CPHA is used with CPOL to produce a desired clock/data relationship between master and slave
devices. CPHA is set at reset.
LSBF — Least Significant Bit First
0 = Serial data transfer starts with MSB
1 = Serial data transfer starts with LSB
SPCR
— SPI Control Register
$YFFC38
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
SPIE
SPE
WOMP
MSTR
CPOL
CPHA
LSBF
SIZE
BAUD
RESET:
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
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| 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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