MC68HC908GR8CD Freescale Semiconductor, MC68HC908GR8CD Datasheet - Page 212

• Manufacturer Part Number: MC68HC908GR8CD
• Description: 8-bit Microcontrollers - MCU 8 Bit 8MHz
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC908GR8CD

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: HC08
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 384 B
• Operating Supply Voltage: 3 V to 5 V
• Package / Case: SOIC-28
• Mounting Style: SMD/SMT
• Data Rom Size: 64 KB
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 21
• Program Memory Type: Flash

Serial Peripheral Interface (SPI)
212
SPSCK CYCLE
CPHA = 1
CPHA = 0
NUMBER
CLOCK
CLOCK
CLOCK
CLOCK
CLOCK
SPSCK
SPSCK
MOSI
BUS
BUS
BUS
BUS
BUS
Figure 20-7. Transmission Start Delay (Master)
TO SPDR
TO SPDR
TO SPDR
MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7
WRITE
WRITE
WRITE
TO SPDR
TO SPDR
WRITE
WRITE
EARLIEST
EARLIEST
EARLIEST
EARLIEST
INITIATION DELAY FROM WRITE SPDR TO TRANSFER BEGIN
LATEST
SPSCK = INTERNAL CLOCK ³ 128;
SPSCK = INTERNAL CLOCK ³ 32;
SPSCK = INTERNAL CLOCK ³ 8;
INITIATION DELAY
128 POSSIBLE START POINTS
32 POSSIBLE START POINTS
8 POSSIBLE START POINTS
SPSCK = INTERNAL CLOCK ³ 2;
2 POSSIBLE START POINTS
MSB
1
BIT 6
2
LATEST
LATEST
LATEST
BIT 5
Freescale Semiconductor
3