XC912BC32CFU8 Motorola Semiconductor Products, XC912BC32CFU8 Datasheet - Page 13
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XC912BC32CFU8
Manufacturer Part Number
XC912BC32CFU8
Description
M68HC12B Family Data Sheet
Manufacturer
Motorola Semiconductor Products
Datasheet
1.XC912BC32CFU8.pdf
(362 pages)
- Current page: 13 of 362
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M68HC12B Family — Rev. 8.0
MOTOROLA
14.1
14.2
14.2.1
14.2.2
14.2.3
14.2.3.1
14.2.3.2
14.2.3.3
14.2.3.4
14.2.3.5
14.2.3.6
14.3
14.3.1
14.3.2
14.3.3
14.3.4
14.3.5
14.3.5.1
14.3.5.2
14.3.5.3
14.3.5.4
14.3.5.5
14.4
14.4.1
14.4.2
14.4.3
14.5
14.5.1
14.5.2
14.6
14.6.1
14.6.2
15.1
15.2
15.3
15.4
15.4.1
15.4.2
15.4.3
15.5
15.5.1
15.5.2
15.5.3
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Serial Communication Interface (SCI) . . . . . . . . . . . . . . . . . . . . . . . . . 204
Serial Peripheral Interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Port S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Serial Character Transmission using the SCI. . . . . . . . . . . . . . . . . . . . 224
Synchronous Character Transmission using the SPI . . . . . . . . . . . . . . 225
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
BDLC Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Power-Conserving Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Section 15. Byte Data Link Communications (BDLC)
SCI Baud Rate Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Pullup and Reduced Drive Register for Port S . . . . . . . . . . . . . . . . 223
Code Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Code Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
BDLC Wait and CPU Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
SCI Register Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
SPI Baud Rate Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
SPI Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
SS Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Bidirectional Mode (MOMI or SISO) . . . . . . . . . . . . . . . . . . . . . . . . 216
SPI Register Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Port S Data Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Port S Data Direction Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Power Off Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Reset Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Run Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
BDLC Stop and CPU Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 231
BDLC Stop and CPU Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 232
SCI Baud Rate Control Register . . . . . . . . . . . . . . . . . . . . . . . . . 206
SCI Control Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
SCI Control Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
SCI Status Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
SCI Status Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
SCI Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
SPI Control Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
SPI Control Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
SPI Baud Rate Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
SPI Status Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
SPI Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Table of Contents
Section 14. Serial Interface
Table of Contents
Data Sheet
13
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