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MC68HC908AP16CFB bảng dữ liệu(PDF) 16 Page - Motorola, Inc

tên linh kiện MC68HC908AP16CFB
Giải thích chi tiết về linh kiện  Microcontrollers
PDF  440 Pages
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nhà sản xuất  MOTOROLA [Motorola, Inc]
Trang chủ  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

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Table of Contents
Data Sheet
MC68HC908AP Family — Rev. 2.5
16
MOTOROLA
Section 15. Serial Peripheral Interface Module (SPI)
15.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
15.2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
15.3
Pin Name Conventions and I/O Register Addresses . . . . . . . 290
15.4
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
15.4.1
Master Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
15.4.2
Slave Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
15.5
Transmission Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
15.5.1
Clock Phase and Polarity Controls. . . . . . . . . . . . . . . . . . . 294
15.5.2
Transmission Format When CPHA = 0 . . . . . . . . . . . . . . . 295
15.5.3
Transmission Format When CPHA = 1 . . . . . . . . . . . . . . . 297
15.5.4
Transmission Initiation Latency . . . . . . . . . . . . . . . . . . . . . 298
15.6
Queuing Transmission Data . . . . . . . . . . . . . . . . . . . . . . . . . . 300
15.7
Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
15.7.1
Overflow Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
15.7.2
Mode Fault Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
15.8
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
15.9
Resetting the SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
15.10 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
15.10.1 Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
15.10.2 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
15.11 SPI During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . 309
15.12 I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
15.12.1 MISO (Master In/Slave Out) . . . . . . . . . . . . . . . . . . . . . . . . 310
15.12.2 MOSI (Master Out/Slave In) . . . . . . . . . . . . . . . . . . . . . . . . 310
15.12.3 SPSCK (Serial Clock). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
15.12.4 SS (Slave Select) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
15.12.5 CGND (Clock Ground) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
15.13 I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
15.13.1 SPI Control Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
15.13.2 SPI Status and Control Register . . . . . . . . . . . . . . . . . . . . 315
15.13.3 SPI Data Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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