MC68908GZ8MFAE Freescale Semiconductor, MC68908GZ8MFAE Datasheet - Page 252

• Manufacturer Part Number: MC68908GZ8MFAE
• Description: IC MCU 8BIT 8K FLASH 48-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68908GZ8MFAE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: CAN, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 37
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 48-LQFP
• Processor Series: M689xx
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SPI, SCI, CAN
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 37
• Number Of Timers: 2
• Operating Supply Voltage: 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, M68CBL05AE, DEMO908GZ60E, M68EML08GZE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Timebase Module (TBM)
18.5 TBM Interrupt Rate
The interrupt rate is determined by the equation:
where:
252
FROM CGM MODULE
f
Divider = Divider value as determined by TBR2–TBR0 settings, see
TBMCLK
FROM CONFIG2
TBMCLKSEL
CGMXCLK
= Frequency supplied from the clock generator (CGM) module
÷ 2
÷ 2
÷ 2
÷ 2
÷ 2
÷ 2
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
t
TBMRATE
÷ 2
Figure 18-1. Timebase Block Diagram
÷ 2
DIVIDE BY 128
PRESCALER
÷ 2
=
÷ 2
÷ 2
-------------------------- -
f
TBMRATE
1
÷ 2
÷ 2
=
÷ 2
÷ 2
---------------------- -
f
Divider
TBMCLK
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0
1
Table 18-1
TBMCLK
TBON
Freescale Semiconductor
R
TBIF
TBMINT
TBIE