MC68HC908GP16CFB Freescale Semiconductor, MC68HC908GP16CFB Datasheet - Page 190

• Manufacturer Part Number: MC68HC908GP16CFB
• Description: MCU 8-BIT 16K FLASH 44-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GP16CFB

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 33
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Timebase Module (TBM)
16.4 Interrupts
The timebase module can periodically interrupt the CPU with a rate defined by the selected TBMCLK and
the select bits TBR2–TBR0. When the timebase counter chain rolls over, the TBIF flag is set. If the TBIE
bit is set, enabling the timebase interrupt, the counter chain overflow will generate a CPU interrupt
request.
Interrupts must be acknowledged by writing a 1 to the TACK bit.
190
FROM ICG MODULE
FROM CONFIG2
TMBCLKSEL
TBMCLK
÷ 2
÷ 2
÷ 2
÷ 2
÷ 2
÷ 2
MC68HC908EY16 • MC68HC908EY8 Data Sheet, Rev. 10
÷ 2
Figure 16-1. Timebase Block Diagram
÷ 2
÷ 2
PRESCALER
DIVIDE
BY 128
÷ 2
÷ 2
÷ 2
÷ 2
÷ 2
÷ 2
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
1
0
TBON
R
Freescale Semiconductor
TBIF
TBMINT
TBIE