MC68HC908AB32CFU Freescale Semiconductor, MC68HC908AB32CFU Datasheet - Page 280

• Manufacturer Part Number: MC68HC908AB32CFU
• Description: IC MCU 8MHZ 32K FLASH 64-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908AB32CFU

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: POR, PWM
• Number Of I /o: 51
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Serial Peripheral Interface Module (SPI)
16.2 Introduction
16.3 Features
Technical Data
280
16.13.3 SPSCK (Serial Clock). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
16.13.4 SS (Slave Select) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
16.13.5 CGND (Clock Ground) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
16.14 I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
16.14.1 SPI Control Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
16.14.2 SPI Status and Control Register . . . . . . . . . . . . . . . . . . . . 306
16.14.3 SPI Data Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
This section describes the serial peripheral interface (SPI) module,
which allows full-duplex, synchronous, serial communications with
peripheral devices.
Features of the SPI module include the following:
•
•
•
•
•
•
•
•
•
•
•
•
Full-duplex operation
Master and slave modes
Double-buffered operation with separate transmit and receive
registers
Four master mode frequencies (maximum = bus frequency ÷ 2)
Maximum slave mode frequency = bus frequency
Serial clock with programmable polarity and phase
Two separately enabled interrupts:
– SPRF (SPI receiver full)
– SPTE (SPI transmitter empty)
Mode fault error flag with CPU interrupt capability
Overflow error flag with CPU interrupt capability
Programmable wired-OR mode
I
I/O (input/output) port bit(s) software configurable with pullup
device(s) if configured as input port bit(s)
2
Serial Peripheral Interface Module (SPI)
C (inter-integrated circuit) compatibility
MC68HC908AB32
Freescale Semiconductor
—
Rev. 1.1